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2. Optimum HDTV viewing distance - Wikipedia

   en.wikipedia.org/wiki/Optimum_HDTV_viewing_distance

   [3] [4] Thus, the correct viewing distance is critical to the enjoyment of HDTV as it is intended. While helping to define the HDTV standard, RCA engineer and member of the US delegation to the International Telecommunication Union-Radiocommunication Sector ( ITU-R ), Bernard J. Lechner , made an early analysis of viewing distance, deriving the ...

3. Display size - Wikipedia

   en.wikipedia.org/wiki/Display_size

   When the common aspect ratio shifted from 4:3 to 16:9, the new widescreens were labeled with a W in the US. A screen that is approximately the same height as a 27V would be a 32W. Vizio and other US TV manufacturers have introduced even wider screens with a 21:9 aspect ratio to match aspect ratios used in cinemas. To gauge the relative sizes of ...

4. Viewing angle - Wikipedia

   en.wikipedia.org/wiki/Viewing_angle

   In a technical context, the angular range is called viewing cone defined by a multitude of viewing directions. The viewing angle can be an angular range over which the display view is acceptable, [1] or it can be the angle of generally acceptable viewing, such as a twelve o'clock viewing angle for a display optimized or viewing from the top. [2]

5. Occupancy sensor - Wikipedia

   en.wikipedia.org/wiki/Occupancy_sensor

   Occupancy sensor types include: PIR sensors, which work on heat difference detection, measuring infrared radiation.Inside the device is a pyroelectric sensor which can detect the sudden presence of objects (such as humans) who radiate a temperature different from the temperature of the background, such as the room temperature of a wall.

6. Display motion blur - Wikipedia

   en.wikipedia.org/wiki/Display_motion_blur

   Some displays use motion interpolation to run at a higher refresh rate, such as 100 Hz or 120 Hz to reduce motion blur. Motion interpolation generates artificial in-between frames that are inserted between the real frames. The advantage is reduced motion blur on sample-and-hold displays such as LCD.

7. Production control room - Wikipedia

   en.wikipedia.org/wiki/Production_control_room

   In many facilities, a lighting control console used to control the lighting on the studio floor; In some facilities, VTRs, VCRs, CCUs, video servers and video and audio converters, processors and routers may also be located in the PCR, but are also often found in the central apparatus room (CAR).

8. Motion detector - Wikipedia

   en.wikipedia.org/wiki/Motion_detector

   A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.

9. Broadcast range - Wikipedia

   en.wikipedia.org/wiki/Broadcast_range

   A broadcast range (also listening range or listening area for radio, or viewing range or viewing area for television) is the service area that a broadcast station or other transmission covers via radio waves (or possibly infrared light, which is closely related).