Questions tagged [video-transmitter]

Questions related to transmitting image frames, primarily wirelessly

46 questions
19
votes
4 answers

Why are color difference signals transmitted rather than R,G,B signals?

In color television systems back in the early days, people used to transmit color difference signals (Y-R) and (Y-B) along with Y, which is the luminance signal. My question is why are color difference signals transmitted rather than just two of the…
Moonzarin Esha
  • 307
  • 2
  • 4
5
votes
3 answers

Separating the AM and QAM components in PAL signal demodulation

I'm attempting to emulate the modulation and demodulation of a PAL video frame in software, but I'm having trouble understanding how the AM (luma) and QAM (UV) components of the signal are separated during the demodulation process. Background: The…
Polynomial
  • 10,562
  • 5
  • 47
  • 88
4
votes
1 answer

Cheapest way to wirelessly transmit video

I'm really big on building RC vehicles. I want to hook up a video camera which can transmit video signals, but don't know what options I have available. My only requirement is that it has to be as cheap as possible. I care very little about video…
capcom
  • 5,882
  • 14
  • 48
  • 59
4
votes
1 answer

Displayport clock recovery

The displayport protocol runs at a fixed frequency of either 1.62GHz, 2.7GHz, or 5.4GHz. The pixel stream (strm_clk) it carries runs at an arbitrary frequency and is likely to be asynchronous to the link clock (link_clk). The receiver is supposed to…
Ran
  • 41
  • 3
3
votes
1 answer

Airwave TX "BYPASS" capacitor

I'm using an Airwave 663 module. It's a 5.8GHz FM video + stereo audio transmitter module. Here is the datasheet: http://www.airwave.com.tw/specification/RF%20modules/AWM663TX.pdf It is apparent that the module requires a 470uF 16V capacitor on the…
Thomas O
  • 31,546
  • 57
  • 182
  • 320
3
votes
1 answer

Cloverleaf possibly blew out transmitter?

I went ahead and built a Cloverleaf antenna, right-hand polarized, for a video transmitter, transmitting @ 1280MHz and 800mW. After about a week, however, the transmitter stopped transmitting. I'm wondering if it's possible that the cloverleaf…
Chris
  • 617
  • 9
  • 15
3
votes
2 answers

Transmitting a video stream through a microcontroller

I'm working a a project that currently works well but this year we want to expand it by collecting data from it, independent of its current functions. We have set up an iPad App to control an Arduino through Bluetooth. The next step is…
Tom Prats
  • 161
  • 2
  • 2
  • 11
3
votes
3 answers

Transmit video wirelessly from on board camera over short distance

Possible Duplicate: Cheapest way to wirelessly transmit video I asked a similar question a few days ago, but I think I was unclear about my requirements, and they have changed a little since then too. Here's my proposed setup: I have a small…
capcom
  • 5,882
  • 14
  • 48
  • 59
3
votes
1 answer

Low-Power Video Transmission for IoT

I am currently developing an apparatus for feeding and monitoring my dog remotely. The basic idea is to make this using 2 main components: The first component will be composed of a camera pointing to my dog's plate and a microcontroller with a…
DSte
  • 45
  • 2
2
votes
3 answers

Want to make a UAV

I've been inspired by the guys at DIY Drones and I'm toying with the idea of making a UAV. To transmit the sensor data, I was thinking I'd go with a 60mW XBee, but I also would like to transmit live video. I'm having a hard time finding a way to…
Matt Williamson
  • 1,192
  • 2
  • 10
  • 24
2
votes
2 answers

Microcontroller used to transmit video?

I need help choosing a microcontroller for a project I'm doing. This microcontroller needs to do the following: 1) Interface with a low resolution camera, obtain video feed from it, compress it and send it a wireless transmitter. 2) Obtain analogue…
Andy
  • 21
  • 1
  • 2
2
votes
1 answer

Using Bluetooth to Send Video

I am a second year Electrical Engineering major. I have done a little with the Arduino, but it is not powerful enough to handle video (from what I understand). I would like to capture video from something like a webcam and send it over Bluetooth to…
Brent
  • 21
  • 2
1
vote
1 answer

Video wireless streaming efficiency (analog vs digital)

I was wondering about the best way to transmit a real-time video (wireless).I do not need to be high quality video, so I've bought this camera module: Camera module Camera datasheet Now I need to make a wireless transmission in real time without…
Felipe_Ribas
  • 1,387
  • 1
  • 9
  • 25
1
vote
2 answers

How do coaxial cables carry information that a TV can intercept and display?

Is there a specification for this? Like, say, at the backside of a cable box there exists a singular coaxial cable that is meant to be plugged directly in the back of the TV. The TV must be set to a certain "mode" somehow ... I want to know the…
1
vote
1 answer

How to transmit HDMI data over fiber

I need to send video data over a fiber optic cable. The video input is coming via an HDMI link. The fiber optic link is already carrying some other data (an FPGA is controlling the link), so the video will have to be time-division multiplexed with…
SomethingBetter
  • 2,260
  • 7
  • 26
  • 33
1
2 3 4