Questions tagged [video]
Specify video format, e.g. NTSC, ATSC, VGA, etc.
372
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What does a grid-cathode bypass capacitor on CRT do, and why is this one not doing it?
I have modified a (US) 1970s solid state B&W TV set for direct (NTSC) composite input for vintage computer use, in accordance with some equally vintage instructions specific to this set. The set ...
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How to change the gain for this amplifier?
I'm modifying a hot-chassis TV to add a Y/C input. To isolate the inputs, I'm using an optocoupler with the following circuit:
The jungle IC, however, requires a 4.5Vpp signal on the chroma line:
Is ...
0
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2
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WHY does the LED turn on SLOWLY?
TL;DR ver:
LED light controlled with Arduino lights up during an interval of 2 frames, not one in a video footage of 30 FPS. It slowly turns on... but why?
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I have a (mouse) behavioral experiment ...
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Obtaining analog video from car LVDS interface theoretical question
Got a theoretical question.
A car has 4(5 with GND) pin FAKRA connector between head unit (NAC) and head display. 2 of them are mentioned as LVDS+ and LVDS-.
As far as I understand, it's 2-way gigabit ...
4
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3
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Optocoupler as a switch for composite video sources
I want to switch between 2 video sources (cameras) to a common video receiver. Is general purpose optocoupler suitable for that?
Here is the schematics:
In more details, the video switch is ...
0
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1
answer
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Feeding multiple analog video channels onto a common bus - signal integrity issue?
Consider the following simplified schematic:
The intention here is to have multiple analog video input channels selectively coupled trough an analog switch onto a shared bus (this bus will be on a PCB)...
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Connect internal CRT's RGB to external LCD
In my boat i have a sonar with CRT monitor and no external video output. I would like to connect a LCD monitor instead. Schematic below show the RGB signals internally.
Reg pic. My question is: If ...
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2
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How can I read analog video signal from a FPV camera with a Raspberry Pi?
I want to do a few experiments with video encoding and transmission, so I need to somehow read the analog video signal (PAL or NTSC) in to the computer and process it.
I need to read an analog video ...
2
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0
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Transmitting differential video signal to the ADC input
I'm designing a circuit that converts a single-ended analog video signal (f = 10 MHz) to a differential pair and then is processing the data to a digital form. The signal is transmitted through a ...
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2
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Why is the Gb/s usually matched with the GHz for SDI?
My knowledge in electronics and RF(because high speed data) is very surface level but attempting my best.
I'm attempting to do an application which utilizes 3G SDI, but am not understanding why there ...
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2
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ON TV Decoder Magazine Article/Circuit?
Starting in the 1970s, there was a scrambled TV service transmitted over the air called "ON TV" in our region. I think "Radio Electronics" magazine published an article about ...
3
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Attempting to reconstruct a simple analogue video RGB->YUV matrix (digital logic)
I’ve recently been trying to crack a difficult problem without much luck.
I’m trying to re-create an early analogue video text generator device which generates text overlays and outputs as either RGB ...
0
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1
answer
292
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RS-170 and SMPTE 170M Encoder
I have been searching for a Video Encoder (DAC) that can output composite signals that are EIA-170/RS-170 and SMPTE 170M standard compliant. I might not be understanding these standards correctly but ...
3
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2
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Genlock Analog Video
I am currently converting an TMDS signal into composite. Please see block diagram. The video encoder outputs the H-Sync and V-sync. I am also getting an external sync source that I need to use to ...
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Convert Composite Video to RS-422 [closed]
I misinterpreted my requirements and asked the question below, which does not make sense.
I am designing a Digital (TMDS/HDMI) to Analog (Composite) video circuit. I am almost to the end. The last ...