EntranceWhat is Ir Extender Cable Samsung. Description and features of work Why do we need an infrared adapter
IR Infrared Remote Extender 4 Emitter Emitters 1 Receiver Repeater System Kit
In short - it works, it costs its own money.
Universal Remote Setup: Blu-ray/DVD Player - 2013 Samsung Smart TV
More details - please under cat.
I thought about what category to put it in, I decided that once it was bought to control the muses. the center, then let it be audio equipment. Obviously, anything can be controlled, which is usually controlled by household IR remotes - audio, video, TV, computers, etc.
Those. it's stupid Layer 1 accessory 😉
There were no packages, boxes, instructions or anything else.
The bottom one is a bunch of IR emitters and a male mini-jack 3.5 connector.
The length of the wire "Receiver" - "mini jack 3.5" - 1.9 m,
Wire length "mini jack 3.5" - "IR emitters"
Receiver - hooked in the highest place on the cabinet:
It has a reddish LED that flashes when a signal is received.
Here is such a moment - the emitter itself is very small and the emitting LED is placed deep in the center, so you need to position it exactly opposite the receiver:
(here I wanted to stick a picture, but my voltage meter showed zeros)
and when pressing the buttons on the remote control:
But if anyone needs an extended coverage area, they are worthy of consideration.
small, light, the required minimum of wires.
In my version it is unrealistic to connect additional. receivers, i.e. not extensible (at least without ratfile)
Requires a very clear positioning of the emitter relative to the receiver.
works, costs its own money, I recommend to buy.
To control music - wireless mouse. The interface of the player - for any taste. Coming soon is player.com.
PS phone samsung smart tv.
but the remote control is often faster.
There is a TV set in the bedroom and satellite receiver, the wife often watches TV in the kitchen and wished to have a satellite signal there too.
I cut and lengthened the LF cable with flowers and the IR extension cable (it also had to be lengthened).
The length of each cable came out approximately 7.5-8 meters.
Everything works great.
The Chinese do not sell anything yet.
Hunt already FullAchD.
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Abstracts
How to setup IR extender cable in Samsung F series. How to setup IR Extender cable in Samsung F series Smart TV? Last Update date: 2014. To know more about IR Extender cable click here. contact Us. What is an IR cable. I have long had a board for TV and fm in my computer for a long time, but there is still an ir cable and a place for that. Remote control extension for all IR remotes Extender. Author: Dmitry OSIPOV. ir extender cable samsung what you need - Meander. Tags: bn96-26652b what is it, CD4093, HRM536, ir extender cable samsung for what. Ir Extender Cable Samsung What It Is Onetile. Archive by label: ir extender cables samsung what is it needed for. Ir Extender cable samsung What it is. IR Extender p / y extension cable SkyNET. IR Extender SkyNET. Please note that we have added a pickup point on the Left Bank. » Connectors on the TV EXT RGB, IR out assignment. TVs have EXT RGB and IR out connectors, what is it What does the marking of Samsung monitors mean. Samsung LED TVs 2013 - Conference. Samsung LED TVs 2013. Samsung Smart TVs:: Your IP address. samsung smart tv. Your IP address is 157. 241 blocked! You have been banned from the forum! Samsung TV IR transmitter BN96-26652A. Infrared transmitter (IR BLASTER) for TV Samsung BN96-26652A.
In addition to various audio-video equipment, infrared (IR) remotes remote control any system in the apartment can be equipped: air conditioners or supply and exhaust systems, control of curtains or blinds, all kinds of elements related to " smart home" etc.
Quite often, especially in large apartments or houses, it becomes necessary to control this or that technique or electrical appliances from several different rooms at once, from another room, or simply hide it behind the doors in a closet at .
But how to implement this, because for the operation of the IR control panel, it is necessary that both the receiver located in the electrical appliance and the infrared signal transmitter - the remote control, be in direct line of sight of each other or not very far so that the reflected signal can reach.
The way out of this situation is to use an IR repeater, also called an IR remote control extension.
Currently, there are a sufficient number of models of IR extenders from various manufacturers on sale, the vast majority of which are made in China. All of them differ both externally and in basic characteristics and functionality. Let's look at the operation of an IR extender using the example of a rather successful, in my opinion, QED repeater model - Roomlink rl-sp3 (roomlink).
Roomlink- this is not just an IR extender, it is a multifunctional complex that allows you to solve almost any problem related to increasing or transferring the coverage area of any infrared remote control . Main Feature This IR extension cable is the presence in the kit of an infrared signal receiver - a sensor made in the form of electrical installation equipment, in other words, similar to a switch or socket that is installed in a standard one.
The principle of operation of the IR extender
The principle of operation of the IR extender is quite simple.- the signal from the remote control enters the IR signal receiver, after which it is delivered by wires to the Roomlink central unit, where it is processed and sent further through the IR signal transmitter (emitter) to the required device. The IR signal emitter itself is fixed opposite the window through which the device communicates with its remote control, respectively, Roomlink relays the received signal directly to it. Below is a diagram of the operation of the IR extension cable Roomlink, where the principle of its operation is clearly shown.
The Roomlink IR extension kit comes with four emitters (IR transmitter) and only one sensor (IR receiver), but it is possible to connect four IR signal sensors to the central unit at the same time, this is the number of connectors on the case, additional sensors are purchased separately.
In addition, if you need to connect more than four IR sensors, they can be connected in series to one another, for this each receiver has terminals in (input, the next IR sensor is connected here) and out (output, wires coming from the central unit are connected here roomlink).
The connection diagram of the IR sensor can be either parallel or serial, and it is also possible to combine both types of connection:
In order for the signal from the remote control to reach the required device, IR emitters are used, which can be mounted directly opposite the “window” of the IR sensor of the required devices, everything you need for this is included in the kit. The Roomlink central unit has two connectors for connecting emitters, for a standard 3.5mm jack plug.
In addition, a large number of modern audio-video equipment has special connectors for connecting an external IR receiver or receiving a signal for transmission to other devices. This is done just for cases when the equipment is not in the range of the remote control, or the components of one system are separated or hidden. In this case, instead of the IR emitter, for proper operation, it is enough to connect the Roomlink unit with the required device with a wire with 3.5mm jack plugs on both sides, which is very convenient, because. All wires are hidden from the back.
As you can see, the IR extender is a fairly versatile and very convenient invention that allows you to control equipment from the remote control even if it is located outside its direct action zone. Wherein IR extender is compatible with almost all possible devices with infrared remote controls and has a convenient, sophisticated connection technology.
AT Everyday life there are quite a few situations in which the use of an IR extender is simply necessary: when television, audio, video and any other devices are forced to be hidden or taken out of the range of the remote control, located in another room or at a great distance from the place from where it is convenient to control them.
A feature of the Roomlink IR extender is that all communications for it must be laid and prepared already at the repair stage, since the sensor of the IR sensor is built-in and is installed in a standard socket.
All your questions about the operation of the IR extender or the experience of its implementation on other components, be sure to describe in the comments to the article!
We present a review of a TV that is definitely of great interest, both in terms of physical characteristics - size, resolution and screen geometry - and in terms of the set of functions inherent in modern "smart" TVs. However, far from all the skills and abilities of this advanced device were subjected to our testing, we didn’t even try to include something - the manufacturer implemented too much of everything in it. As a result, this article mainly presents the results of testing the TV as a display device.
Passport characteristics, scope of delivery and price
| Screen | |
| Screen type | LCD panel *VA with LED backlight |
| Diagonal | 65" concave shield with 4.2m radius of curvature |
| Permission | 3840×2160 pixels (16:9) |
| Interfaces (on One Connect block) | |
| USB 3.0 | USB 3.0 interface, connection of external devices (type A socket, 5 V max. 1 A) |
| USB 2.0 | USB 2.0 interface, connection of external devices (type A socket, 5 V max. 0.5 A) |
| IR Out | IR transmitter output, external device control (3.5 mm mini jack) |
| Digital Audio Out | Digital audio output (Toslink) |
| common interface | CI/CI+ Card Access Card Slot (PC Card) |
| Satellite Sub./Main | Antenna input, satellite TV tuner, two connectors, Multiswitch/DiSEqC (type F, 75 ohm) |
| Air/Cable | Antenna input, analog and digital TV tuners (DIN 75 ohm) |
| HDMI In 1/2/3/4 | HDMI inputs, video and audio, version 2.0, up to 4096×2160p/60Hz (MonInfo Report), Anynet+ (HDMI-CEC), BD Wise, Audio Return Channel (only HDMI In 3), MHL (only HDMI In 4) |
| LAN | Wired Ethernet network(RJ-45) |
| Audio Out/Component In/AV In | stereo audio output, composite video input, component video input, stereo audio input (special connector, via RCA jack adapter and 3.5 mm mini jack) |
| Ext (RGB) | RGB and composite (?) video inputs, stereo audio input (special connector, SCART via adapter) |
| Service | Service interface |
| Wireless interfaces | Wi-Fi IEEE 802.11a/b/g/n(/ac?), Bluetooth |
| Other characteristics | |
| Acoustic system | 60W: Front HF (2×10W), Mid (2×10W), LF (2×10W) |
| Peculiarities |
|
| Dimensions (W×H×D) | 1450.7×891.6×326.8 mm with stand, 1450.7×848.2×110.5 mm without stand |
| Weight | 31.0 kg with stand, 26.8 kg without stand |
| Power consumption | 297W maximum, 0.3W standby |
| Supply voltage | 220-240 V, 50/60 Hz |
| Contents of delivery |
|
| Link to the manufacturer's website | |
| Medium current price according to Yandex.Market | T-10776723 |
| Offers according to Yandex.Market | L-10776723-10 |
Appearance
TV is not very different slim body, therefore, in the case of a wall mount, it will not look like a picture, especially considering the curvature of the screen. The bend of the screen, by the way, is not very large - the center relative to the edges goes deep by about 60 mm with a width of almost 1.5 m. at a distance of 4 m from the screen surface. The bend, however, is uneven - the central part is almost flat, closer to the edges there is more concavity, and very close to the right and left borders, the screen is even slightly convex. When viewed, this unevenness is almost imperceptible - the general feeling of lateral coverage prevails - but the reflection of objects (for example, the user himself) in the off screen reveals a deviation from cylindricity. The outer surface of the matrix is relatively hard and mirror-smooth, apparently made of scratch-resistant plastic. At the same time, an effective anti-glare filter reduces the brightness of reflected objects to such an extent that the specularity of the screen does not interfere with viewing.
The narrow (approximately 10 mm) mirror-smooth front frame is made of metal (probably aluminum alloy) and covered with black (does not reflect and is not distracting!) scratch-resistant enamel. The end frame around the perimeter is made of plastic with a tinted chrome finish. The total width of the frame at the top and sides reaches about 12 mm. From the bottom, the end frame moves away from the front by a few millimeters - the resulting gap is used to accommodate an IR receiver, a light sensor, an illuminated insert in the center, and as an acoustic tunnel for mid- and high-frequency speakers (two diffusers can be seen in the photo below).
All these things, except for the matte white insert, are located in depth and are invisible to the user - the screen is perceived as a monolithic concave surface. In the center on the top end there is a tiny video camera that especially suspicious people can push inside when it is not needed.
There are two gratings next to the camera, apparently covering the microphones. The rear panel is combined - most of it is made of an aluminum plate with a matte anodized and painted black surface, and black plastic inserts with a matte surface are used on top and bottom.
The following can be found on the back: a "joystick-like button" that can be used to control the TV if the remote control is not available,
two niches - one for the One Connect cable,
the second for the power cable,
and four threaded holes for a 400 x 400 mm VESA mount (you need to use the included plastic spacers).
The base of the standard stand is made of aluminum alloy. The front of the base is a monolithic plate with a matte and uncoated surface, which is a minor miscalculation, as this surface reflects and slightly distracts from what is happening on the screen. Part of the base is covered with a black plastic shield. 8 rubber feet are glued on the bottom. The stand stand is made of black enameled steel and is covered with a black plastic overlay from the outside. There is a bracket on the back of the rack, through which you can lead outgoing cables (and there are two of them!). The TV stands on a stand steadily and strictly upright.
All interfaces to external devices and, apparently, "smart" filling are located in a separate block One Connect, connected to the TV itself with a thick cable 2.9 m long.
The case of this unit is made partly of black plastic with a matte surface, partly of plastic with a "chrome" mirror-smooth surface, and the top panel of aluminum with a matte finish completes this combination. Numerous interface connectors are located on the two sides of the One Connect block.
Despite active cooling (a fan is installed inside), during operation, the unit body heats up to the “very warm” state. The TV itself has a completely passive cooling - the air circulates through a few ventilation grilles - and practically does not heat up during operation.
The TV and everything to it is packed in a relatively small box - its dimensions do not greatly exceed the width, length and thickness of the screen block. The base of the stand and the stand are placed separately, the rest of the accessories are distributed in three black boxes of different hardness.
There is documentation in a thin cardboard box, the One Connect block is packed in a corrugated cardboard box, and the rest of the small things are in the box of the most representative type.
Remote controller
Remote control Samsung Smart Control is, after curvature and ultra-high resolution, perhaps the most remarkable detail of this TV. The body of the remote control is made of silver-coated plastic, the battery cover is made of black matte plastic with a ribbed surface, the panel under the buttons is made of hard plastic, while the buttons, including intricate shapes, protrude through exactly the corresponding slots in the panel . In the center of the block of cursor buttons is a concave oval-shaped touch pad. The remote control is small, streamlined and has, in general, not so many buttons, which is more than offset by its advanced functionality. According to the method of communication with the TV, the remote control is hybrid - at least one command (turning on the TV) is transmitted via the IR channel, while Bluetooth is used to transmit everything else. There are more options for using the remote control. Pressing the remote's mechanical buttons activates the corresponding functions, while the functions of some buttons are context-sensitive, and some functions are called by long pressing a row of buttons. The touchpad recognizes pressing and moving along two coordinates - selection confirmation and two-axis scrolling. When you touch the touch panel, a gyroscopic sensor is activated, which implements the function of a two-axis pointer (gyromousine). Clicking on a button Voice activates voice control(there is a microphone hole in the front of the remote control). To complete short description remote control functions can be mentioned by mentioning the possibility of using a virtual on-screen remote control, which is called when you press the button Keypad, as well as the presence of NFC, a short-range communication technology used, apparently, only to automate the installation of Smart View 2.0 on mobile devices under Android control. To quote from the manual: "Smart View 2.0 is a cross-platform multi-screen application that allows you to display the TV screen on a device that supports NFC technology, transfer media content between two devices, and control your TV remotely."
In the context of this section, we will mention the ability to control gestures recognized using the TV camera (of course, it must be brought into working position). In addition, the camera can also be used to recognize the faces of users when logging into an account. Samsung Apps TV. The manual for the TV also mentions the possibility of being used as input devices conventional keyboards and mice connected via Bluetooth or USB.
We cannot evaluate the work of NFC and Smart View 2.0 - we have not tried it, other control methods from our point of view can be described as follows: for typical functions such as volume control, it is more convenient to use the regular buttons on the remote control, I want to use the touchpad and gyromouse when working with advanced programs , for example, with a web browser, voice control is more convenient to use in the dictation option keywords for searching, and gesture control is one of those features that you forget about after a couple of minutes of trial testing.
Switching
As already mentioned, the interface connectors for connecting external devices are located on the One Connect external unit. Apparently, it contains wireless adapters WiFi and Bluetooth. The table with characteristics at the beginning of the article gives an idea of communication capabilities TV. We note a couple of points: there is a USB 3.0 port with increased load capacity and two USB port 2.0, you can connect to a satellite dish via two cables, one HDMI port supports MHL (but there is no MHL cable in the kit), analog video and audio are output through small-sized multi-pin connectors, which requires the use of special adapters (included in the kit), there is no card reader for SD cards, no headphone output (but support for Bluetooth headphones is declared, with the possibility of separate sound output from two virtual screens to these headphones and to the TV speakers). external devices can be controlled using an HDMI connection using Anynet+ (HDMI-CEC) technology, as well as via IR using an external IR transmitter connected to the One Connect unit.
Wi-Fi and Ethernet allow you to connect your TV to the Internet, integrate it into home network, and also be used in conjunction with mobile devices, realizing a variety of interaction options.
Sound
There is no headphone output, as already mentioned, but, in extreme cases, ordinary wired headphones can be connected to the minijack jack in the bundle of analog connectors on one of the adapters. At the same time, the volume from the TV is not adjustable - in the case of our headphones, it was slightly higher than comfortable, but still within acceptable limits. But in comparison with the built-in acoustics, the quality is somewhat better - the range of reproducible frequencies is wider, the stereo effect is better.
Working with video sources
Cinematic modes of operation were tested when connected to. An HDMI connection was used. The TV supports 480i/p, 576i/p, 720p, 1080i and 1080p at 24/50/60Hz. The colors are correct, all gradations of shades are displayed in the standard video range, there is real support for the 1080p mode at 24 fps - in this mode, frames are displayed with the same duration. Brightness and color clarity are always very high and are determined more by the type of video signal than by the quality of the TV's video path.
The TV converts interlaced video signals to a progressive image more often in the most correct way, restoring the frame from the fields even in the case of the most intricate ways of alternating even and odd fields. When scaling from low resolutions (which in this case also includes 1080i / p) and even in the case of interlaced signals and a dynamic picture, the edges of objects are smoothed - no teeth are visible on the diagonals. The scaling quality is generally very good, the TV tries to improve the image as much as possible, however, sometimes you want to intervene in this process, for example, slightly reduce the increase in contour sharpness in the case of movies on DVD. Improved features include noise reduction - works great - and the function of inserting intermediate frames. The quality of the latter is also very high - intermediate frames are calculated correctly and with high detail even with fast and complex movement of the background and foreground objects. There are very few artifacts, in most cases everything is limited to subtle ripples on the boundaries of objects in motion. In the case of widescreen movies with an aspect ratio above 16:9, it makes sense to turn on the screen dimming function along the top and bottom edges - this significantly reduces the visibility (however, already low) of black bars that complement the picture to the screen size.
In the case of a DVI connection to a computer (using a simple HDMI to DVI adapter cable), resolutions up to 1920 by 1080 are supported. On a TV, you can get a picture without cropping the edges exactly on the screen borders and with good clarity. However, in this case, the horizontal color clarity is still slightly underestimated, in particular, on colored lines of one pixel (of the original image), depending on the parity of the line, the color component may disappear, and such lines may disappear altogether on a black background.
Connecting to a computer via HDMI allowed us to display an image with a resolution of 3840 by 2160 pixels with a maximum frequency of 30 fps in the case of our video card. Note that some functions are not available in 4K mode. Despite the RGB (extended luminance range) input signal with 4:4:4 encoding, the color definition is still reduced with the same parity interleaving. This does not interfere with watching movies and photos at all (they are already usually encoded with a decrease in color definition), but when using this TV as a huge computer monitor, this moment will already acquire the status of a significant drawback.
Playing multimedia content
When testing the surface playback of multimedia content, we limited ourselves to a number of files launched with external hard 2.5" drive connected to the TV via USB 2.0. In the manual for the TV, it is described in sufficient detail what and from what it should reproduce. Of course, with the release of new updates software TV, everything can change and, most likely, for the better.
We have confirmed the TV's ability to display bitmap graphics files in JPEG formats, PNG, BMP and MPO (stereoscopic image format), including as slideshows with transition effects and under the selected background music. The "bunny" in the photo below is the remote control's gyromouse cursor.
In the case of audio files, many common and not so common formats are supported.
A similar situation develops for video files - support for a large number of a wide variety of containers and codecs, several audio tracks, external and embedded subtitles is declared. Indeed, most of the files we tested played normally, including UHD resolution videos with a stream of about 60 Mbps. Audio tracks switched, Russian subtitles were displayed normally.
True, the maximum supported frame rate for our test clips to determine the uniformity of frame interleaving for 720p and 1080p was 50 fps, and for 4K (2160p) - 25 fps inclusive. Also, several test files that can be played without problems, for example, on the vast majority of modern mobile devices, the TV could not play, limiting itself to an optimistic remark that "the selected file is not currently supported." By the way, there are no complaints about frame interleaving, since files with 24, 25, 30 and 50 frames / s are played perfectly, without a single frame drop and with equal frame duration, that is, the TV adjusts the output frequency to the frame rate in the video file and " not distracted” by something extraneous. The identified shortcomings include the output of video files in an extended brightness range. Since most videos are encoded in the standard range of 16-235, the picture of such files will have an underestimated contrast, due to the fact that black color will be displayed as dark dark gray, and white color will be slightly grayish. We hope this will be fixed in future updates.
Photomicrographs of the matrix
The revealed characteristics of the screen allow us to assume that this TV set has a *VA type matrix. Micrographs do not contradict this:
Dark grey:
Grey:
White:
It can be seen that the subpixels of three colors (red, green, and blue) are divided into three almost identical independently (at least in relation to one of the other two) controllable regions, each of which is divided into two regions with domains in different orientations. Such a complex device is, in principle, capable of providing a wide dynamic range in terms of the number of shades, since as the brightness increases, the regions are switched on sequentially, and good viewing angles are facilitated by the variation in the orientation of the LCD in the domains.
Measurement of brightness characteristics and power consumption
Brightness measurements were taken at 25 screen points spaced at 1/6th of the screen width and height (screen borders not included). The contrast was calculated as the ratio of the brightness of the white and black fields at the measured points.
Hardware measurements showed that the contrast is high, the uniformity of the white field is very good, and the uniformity of the black, and as a result, the contrast is not much lower. On the black field, you can notice some variation in the backlight across the screen area:
This TV uses edge-lit LED backlighting, with LEDs arranged in clusters (maybe just one LED each) on the sides of the screen. Groups can be included independently and in pairs opposite each other. The first option is used to implement dynamic local backlight adjustment (function Smart LED), which can visually increase the contrast of the image, but also lead to visible artifacts in the form of halos around small bright objects against a dark background.
The second option - the simultaneous inclusion of groups of LEDs opposite each other - allows you to implement a vertically scanning backlight mode. The backlight control is implemented in such a way that at maximum brightness in 2D mode, there is virtually no brightness modulation, and when the brightness is lowered, modulation appears with a fundamental frequency of 120 Hz (at 60 Hz frame rate):
The dependence of brightness on time at different values medium backlight brightness.
Since the amplitude decreases with a decrease in the backlight brightness and the dependence resembles a sinusoid, the flickering of the backlight at low brightness is noticeable to a lesser extent than in the case of modulation by rectangular pulses with a sharp measurement of brightness from zero to maximum.
In stereoscopic mode, the nature of the backlight is somewhat different - it works in a pulsed mode, while the pulse occurs at the moment when one glass of the glasses is already fully open and the other is closed:
As a result of such synchronous operation of the glasses and the backlight, it is possible to obtain a better separation of angles with a smaller drop in brightness, since the shutters of the glasses open at the moment when the state transition of the LCD cells is completed and the brightness of the backlight is maximum. However, despite the impulsive nature in 3D mode, the screen brightness is still only 40% of the brightness in 2D mode. Also, apparently, in 3D mode, the scanning order of turning on groups of LEDs is saved synchronously with the screen update, which helps to achieve good separation angles (similarly, the backlight turns on at the moment when the state transition of the LCD cells is close to completion).
There is another function that uses backlight control, which is the insertion of an intermediate black frame ( Clear Image LED). Conventionally, between frames, the backlight is practically turned off, during the “demonstration” of the frame, the brightness increases above the maximum in normal mode:
The average brightness still remains at about 70% of the brightness in normal mode. At the same time, dynamic clarity can be considered to be increasing, but unpleasant flickering at a low frequency reduces the positive effect to a minimum. But maybe someone will like it.
The brightness of the white field in the center of the screen and power consumption:
In standby mode and in the off state, the consumption was 0.2 watts.
At maximum brightness, the image will not seem faded even in a brightly lit room, and at minimum brightness, the TV will not be tiring to watch even in complete darkness (if the flicker sensitivity is low).
When choosing an option Economy sensor dir. The brightness of the screen adjusts to the ambient light - in the dark, the screen brightness is reduced, in a brightly lit room, the brightness is increased. In this mode, you can set the minimum brightness level.
Determining response time and output delay
The response time for the black-white-black transition is 10 ms (5.6 ms on + 4.4 ms off). Transitions between semitones occur in an average of 9.4 ms in total. Relatively low response times are achieved at the expense of a slight “overclocking” of the sensor, as illustrated by the brightness graph below, obtained for a grayscale transition:
However, visible to the eye this overclocking does not cause artifacts.
The image output delay relative to a CRT monitor for Full HD 60 fps was about 140 ms with a DVI (HDMI) connection. The delay does not yet require sound synchronization correction, but playing dynamic games or working at a computer is already very unpleasant. Choice of special game mode led to a decrease in latency to 64 ms (with a DVI connection), which is still relatively high, but already much better. In UHD mode, this is not possible, and the delay is set at 130-140 ms.
Rating the quality of color reproduction
In mode Standard and without additional correction, a gamma curve close to a power function with an exponent of 2.2 can be expected. Expectations were justified. To assess the nature of the increase in brightness on a gray scale, we measured the brightness of 256 shades of gray (from 0, 0, 0 to 255, 255, 255). The approximating exponential function with an exponent of 2.16 (it is almost indistinguishable from 2.2) coincides well with the real gamma curve:
The graph below shows the increase (not an absolute value!) in brightness between adjacent halftones:
The increase in brightness growth is on average uniform, but not each next shade is significantly brighter than the previous one, apparently additional digital correction is performed, which inevitably leads to the loss of distinguishable gradations of shades. However, this has no effect on real images. In the shadows, the pair of shades closest to black are indistinguishable in brightness, but again, this minimal blockage in the shadows has practically no effect on image quality:
Note that when viewed from a small angle, the visibility of details in the shadows increases somewhat, and this is typical for matrices of the *VA type.
To evaluate the quality of color reproduction, we used the i1Pro 2 and spectrophotometer.
The color gamut varies slightly depending on the profile and parameter value. Color. space. When choosing original for this setting, the coverage is maximum:
When choosing Auto and in mode Standard slightly less coverage.
In any case (without special additional correction), the coverage is close to sRGB, so the colors on the screen of this TV have a natural saturation. Below is the spectrum for the white field (white line) superimposed on the spectra of the red, green and blue fields (lines of the corresponding colors), obtained in the maximum coverage mode:
Such spectra with a relatively narrow peak in blue and with wide humps in green and red are characteristic of LCD screens that use LED backlighting with a blue emitter and a yellow phosphor. The graphs below show the color temperature in different parts of the gray scale and the deviation from the blackbody spectrum (parameter ΔE) for modes Standard and Movie. (The range close to black can be ignored, since color reproduction is not so important in it, and the measurement error of color characteristics is high.)
The first mode is clearly no different good quality color balance. In mode Movie the situation is better, since at least the color temperature is no longer much higher than the standard 6500 K. ΔE is below 10 units in both cases, which is already good for a consumer device, but the change in this parameter from hue to hue is still large. Note that with a strong desire, experience and means of control, the color balance can be corrected by the settings of the TV itself - under certain conditions, you can adjust the white balance in 10 ranges of the brightness scale.
Viewing angle measurement
To find out how the screen brightness changes when deviated from the perpendicular to the screen, we took a series of measurements of the brightness of black, white and shades of gray in the center of the screen in a wide range of angles, deviating the axis of the sensor in vertical, horizontal and diagonal (from corner to corner) directions.
 |
 |
| In the vertical plane | In the horizontal plane |
 |
 |
| Diagonally | Black field brightness as a percentage of maximum white field brightness |
 |
|
| Contrast |
|
Decreasing brightness by 50% of the maximum value:
We note a very smooth decrease in brightness when deviating from the perpendicular to the screen in the horizontal direction, while the graphs of the brightness of halftones do not intersect in the entire range of measured angles. The brightness drops a little faster when tilted in the vertical direction. With a deviation in the diagonal direction, the behavior of the brightness of the shades is intermediate between the vertical and horizontal directions. The brightness of the black field increases with a deviation from the perpendicular to the screen, and with a diagonal deviation it increases significantly, but only up to about 0.5% of the maximum brightness of the white field, and only at a very large deviation (at 60 °). Only best options IPS matrices boast such black field stability. At the same time, the shade of the black field remains close to neutral gray. Contrast in the ±82° angle range for all directions is well above 10:1.
To quantify the change in color reproduction, we performed colorimetric measurements for white, gray (127, 127, 127), red, green, and blue, and light red, light green, and light blue fields in full screen using a setting similar to that , which was used in the previous test. The measurements were carried out in the range of angles from 0° (the sensor is directed perpendicular to the screen) to 80° with a step of 5°. The obtained intensity values were recalculated into deviation ΔE relative to the measurement of each field at a perpendicular position of the sensor relative to the screen. The results are presented below:
A deviation of 45° can be selected as the reference point. The criterion for maintaining the correctness of colors can be considered the value of ΔE less than 3. It follows from the graphs that when viewed from an angle, most colors change significantly, which is expected for a VA* type matrix and is its main drawback.
Stereoscopic testing
To create a stereoscopic image, the full frame interleaving method is used. Frames for the right and left eyes are sequentially displayed on the TV screen, and active glasses overlap the eyes synchronously with the frames, leaving open the one for which the displayed in this moment frame.
The delivery set includes four pairs of SSG-5100GB glasses, powered by a CR2025 lithium battery (it is stated that it lasts for 150 hours of operation), and synchronized via an RF channel (apparently via Bluetooth).
If necessary, you can buy additional glasses, including, for sure, there are both rechargeable and compatible ones from a third-party manufacturer. The bundled glasses are very comfortable and light (only 24g with battery are promised), they can be used with regular corrective glasses without any problems. In terms of comfort of use, these are the best of all active glasses we have tested.
The TV supports three methods of receiving a stereo pair - packed frames, when two full frames are transmitted for both eyes, and two combined formats: horizontally (in the right half of the frame, a frame is compressed twice horizontally for one eye, in the left half - for the second), and vertically (similar to the previous one, only frames for the eyes are placed in the lower and upper half of the frame). There is another mode for outputting a stereoscopic image - a mode for automatically converting an ordinary "flat" image into a stereoscopic one.
We tested the packed frames stereoscopic mode using . In general, the quality is very high, despite the fact that in some frames you could still notice slight crosstalk.
To test the separation efficiency for the eyes, we ran three test images with a black rectangle on a white background, a white rectangle on a black background, and a light gray rectangle on a dark gray background. In stereo pairs, the rectangles were offset relative to each other, so when viewed through glasses at 100% separation, one would see only one rectangle. The photographs below were taken through glasses, while the exposure was selected so that the white field in the photographs was as bright as possible, but not yet overexposed.
It can be seen that the quality of separation of black on a white background and white on a black background is very high. The separation of gray on gray is somewhat worse.
The maximum brightness when outputting a white field in the case of registration through glasses is reduced to 13% relative to the registration of a white field in 2D mode and without glasses. It should be taken into account that the perceived brightness of the image does not decrease when one eye is closed, and the measurements were carried out only through one glass. As a result, to estimate the maximum possible perceived brightness in stereoscopic mode, the resulting value must be multiplied by 2, which gives 26% of the original brightness of the white field. According to subjective sensations, there is no lack of brightness in stereoscopic mode.
conclusions
The Samsung UE65HU9000TXRU TV has concentrated almost all the main modern achievements and trends. First of all, these include ultra-high resolution and the concave shape of the screen - both of these qualities improve the perception of the image and enhance the effect of "immersion". We also note the advanced features associated with interactive user interaction: a gyroscopic pointer, voice control, gesture control, etc. Something, however, is presented rather as a working version of the concept and is unlikely to be very popular, but the owner this curved window into another reality can show off the skills of his TV, on occasion demonstrating them to dumbfounded guests.
Advantages:
- Ultra HD resolution and concave screen shape
- Stylish and practical design
- High quality Images
- Support for stereoscopic mode
- Advanced multimedia and network functions
- Tweening function and other image processing functions
- Supplied with four pairs of lightweight and comfortable shutter goggles
- Very easy to use remote control
Flaws:
- Somewhat uneven screen curvature
Hi all!
I present to your attention the "extension cable" of the IR remote control for home appliances.
In short - it works, its money is worth it.
More details - please under cat.
I thought in what category to put it, I decided that once it was bought to control the muses. the center, then let it be audio equipment. Of course, anything can be controlled that is usually controlled by household IR remotes - audio, video, television, computers, etc.
The main purpose of the device is to forward the infrared (IR) signal to the “dead zones”, where the regular remote control does not finish.
I have, for example, recently purchased music. the center found a place only on the refrigerator, and the speakers stand exactly in front of it and completely cover the window of the standard IR receiver, so it’s impossible to use the sloth remotely.
To correct this unfortunate misunderstanding, this device was purchased. The principle is as simple as two fingers - we mount a small receiver in a conspicuous place where the remote control “shoots”, from it the wires go to the IR emitters that need to be fixed on the controlled device, exactly above the IR receiver window (at least that’s what it says in the description on site). Both the receiver and transmitters have an adhesive surface covered with paper.
Next, you press a button on the standard remote control, the signal goes to our receiver, is transmitted by wire to the transmitter, and there it is re-emitted directly to the receiver of the controlled device.
I draw your attention - this device does not know anything about the format of IR packets (as long as they remain in a certain range), or about control codes and other things, and it is absolutely indifferent to how and what you are trying to control.
Those. it's stupid Layer 1 device;)
This “extension cable” is powered by USB, which is especially good, because. now many audio-video devices have a USB port, which eliminates the fuss with extra sockets and wires. I plugged mine into the USB port of the music. center - works without problems.
The result is highly dependent on your native remote control and its power / range, but that the device works as stated and performs the functions assigned to it is obvious.
Arrived in a small paper bag, inside two components in their plastic bags.
There were no packages, boxes, instructions or anything else.
Package
This is what it looks like in real life: 
The upper part is a receiver with a USB power connector and a 3.5mm female mini-jack connector for a bunch of transmitters.
The bottom one is a bunch of IR emitters and a male mini-jack 3.5 connector.
The length of the wire "USB connector" - "Receiver" - 2 m,
The length of the wire "Receiver" - "mini jack 3.5" - 1.9 m,
The length of the wire "mini jack 3.5" - "IR emitters" ~ 1 m.
This is what it looks like when installed:
Receiver - hooked in a high place on the cabinet: 
By the way, the receiver is very sensitive, it easily receives the signal reflected from the white wall. Although here again - it depends on the remote itself.
It has a red LED that flashes when a signal is received.
Emitters (3 out of 4): 
Here is such a moment - the emitter itself is very small and the emitting LED is located deep in the center, so you need to position it exactly opposite the receiver: 
I stuck three out of four because it was difficult to crawl and stick neatly. The adhesive surface on the emitters, by the way, is very sticky and worked even after three re-gluings. They were torn off from the smooth plastic of the receiver with difficulty.
Measured current consumption in idle mode
(here I wanted to insert a picture, but my voltage meter showed zeros)
and when pressing the buttons on the remote control: 
3 mA - at the margin of error of the voltage meter.
By the way, I want to note that on the same eBay there are similar ones, with 2-4 receivers and up to 8 transmitters. I thought to take one (put a second receiver in the bedroom), but they are more expensive, have an additional central unit and require full power from the outlet / adapter.
But if anyone needs an extended coverage area, they are worthy of consideration.
A PLUS:
+ compact, lightweight, minimum wires required
+ USB powered
MINUS:
- in my version it is impossible to connect additional. receivers, i.e. not expandable (at least without a file)
- requires very precise positioning of the transmitter relative to the receiver
CONCLUSION:
* works, worth the money, I recommend to buy.
Good luck.
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