Questions tagged [video-transmitter]

Questions related to transmitting image frames, primarily wirelessly

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77 views

How do USB cameras encode video streams to be sent over USB? [closed]

Generic USB cameras can be used plug-and-play without the need for any additional drivers. How is the video stream compressed and sent over a USB connection? What are the standardized drivers that ...
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0answers
22 views

How can a ground loop cause a OSD to flicker / dissapear without affecting the rest of the video?

I don't know if it is best to ask this question here, or on drones.stackexchange.com, but I think that I am more likely to get a good answer here even if i might have to provide a bit more background. ...
19
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4answers
4k views

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 ...
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1answer
40 views

Data rate for 1080p@30fps Video in BT.656 8~10 bit format?

What is the data rate for 1080p@30fps video in BT.656 8~10 bit format? Does the MAX9271 serailizer support FHD@30 in BT.656 format? According to the datasheet the serial data rate is 1.5Gbps.
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0answers
48 views

Streaming video over NRF24L01P

Consider that we have compressed camera output video by JPEG using a Cortex-M4 MCU (Like STM32F407xxx that has a DCMI unit). I want to know, Is it possible to ...
1
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1answer
247 views

Led panel sending and receiving card working

I understand how a RGB LED panel is driven from sparkfun's explanation (here). From manufacturers like Huidu and Novastar I get that in a setup you often need a sending and receiving card. Like you ...
0
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1answer
129 views

4 pin connector is melting even with 5 volt and 0.1 amp power supply, Why?

I am using a connector as shown: . I am using this to connect to my camera, which works at 5 volts and 0.1 Amp. But this connector works only for few days and then the plastic portion of the ...
0
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1answer
157 views

Transistor Video Amp Circuit Help

I built the below video amp & it worked nicely.But it is One in One out video amp. http://www.learningelectronics.net/circuits/video-amplifier.html Now I want One in TWO out Video distributor.I ...
0
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1answer
484 views

Can we use ethernet cable instead of coaxial cable without adaptors.?

I am a mechanical engineer. Trying to build a computer vision system using endoscopic camera. I have a camera with 4 pin input, 2 input pins for power supply of 5 volt and 2 input pins for video ...
0
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1answer
625 views

What does a TV receiver circuit look like? [closed]

I found a few circuits for TV transmitters, but no receivers. I've looked at other simpler RF transmitters and receiver, but it's not obvious to me how to reverse the circuit that I have. I want ...
0
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2answers
251 views

How sensitive are the DVI sync signals?

We're trying to output a full mono-colored screen signal in 640x480 resolution over DVI to a Samsung monitor from an FPGA board. The problem we have is that we don't get any picture showing, instead ...
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1answer
60 views

UHF TV transmitting circuitry [closed]

I would like to know your opinion what are existing solutions for building a small (<5W) UHF TV transmitter. The problem is every circuit or schematics I find already uses separate audio/video ...
3
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1answer
961 views

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 ...
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1answer
68 views

USB RF Videotransmission, is it possible? [closed]

I am thinking about building my next rc plane complete from scratch. I wanted to do the programming by myself, so I have the problem, that I can't use any 5.8Ghz video transmitter because I can't ...
0
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3answers
135 views

What considerations should I have when selecting a microcontroller for fast read and throughput?

For a project at work I am tasked with selecting a microcontroller to facilitate video transmission. The microcontroller will read H.264 encoded 1080p30, 30 to 40-second, video files (~500 MB) from ...
0
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1answer
131 views

How is this small drone able to transmit video to such long distances? And that too an HD video? [closed]

I am an amateur enthusiast and a novice, thus please bear with me. I was having the look at the http://www.proxdynamics.com/products/pd-100-black-hornet-prs drone. It weighs 18 grams and is able to ...
0
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1answer
571 views

What happens to 5.8 GHz signals when too many transmitters are in a confined space? [duplicate]

I'm helping set up an Airsoft arena in the UK and I plan to have RC-FPV cameras mounted on the weaponry and masks which the players use/wear (similar to wireless drone cameras). As it's an open space ...
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2answers
3k views

Do i really need two grounds

I'm a quadcopter FPV addict, and I'm building a new one. As pointed out i will first explain some acronyms of the rc world PDB (Power distribution board) CCD (Type of camera sensor, cmos ccd... not ...
0
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2answers
474 views

How to tap out video signal from a computer or a TV [closed]

I am designing a TV transmitter as given in the link below: http://www.electronicshub.org/tv-transmitter-circuit/ My question is, where from do I give the video input? For the audio input, I can ...
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1answer
179 views

receive a video file with a microcontroller [closed]

I want to send a video stream to a microcontroller via wifi. what microcontroller choose for this task? -Must take into account that the video will be transmitted through a phone -The video will be in ...
3
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1answer
495 views

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 ...
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2answers
805 views

How do I do real-time streaming of video from a PIC32 with camera/Wifi module onto Amazon S3?

I'm looking at RTP/SIP stacks but don't know where to start. What are Live555, MPEG DASH, oRTP, and ffmpeg? Can they run on a PIC? I'm thinking 720p at 15 or 30 ips. I have code working to upload ...
3
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3answers
934 views

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 ...
-2
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1answer
1k views

Long-range RF comm with decent data rate [closed]

I'm building a quadcopter powered with Arduino. For testing purposes, I'm currently using bluetooth. In the future, however, I would like to have some form of fairly long range communication that also ...
0
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1answer
104 views

Transmitting AV signals one way

I have a video feed that's two AV cables (one sound, one video) and I'm looking to transmit them from the source to about 100-200 meters away. Specifically, I need some sort of transmitter/receiver ...
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3answers
12k views

Video stream over RF

I want to stream video from a camera 640x480 frame of 8-bit approximately. I don't want to use wi-fi. I capture the data, encode it, transmit the signal over RF and receive it. Decode the signal. My ...
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1answer
3k views

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 ...
1
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2answers
3k views

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 ...
0
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1answer
3k views

What will I need to send Video over bluetooth or WiFi to Android phone [closed]

I don't know much about electorics I'm programmer and know some stuff about digital electronics that I learn at school, but I have this idea to send video data from a camera (I found on Alibaba CCD ...
1
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1answer
485 views

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 ...
2
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2answers
3k views

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 ...
3
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1answer
859 views

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 ...
2
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2answers
46k views

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 ...
3
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3answers
5k views

Transmit video wirelessly from on board camera over short distance [duplicate]

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 ...
4
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1answer
753 views

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 ...
2
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1answer
2k views

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 ...
0
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1answer
495 views

Can anyone identify this type of connector

I have a Lawmate 2.4 Ghz Video transmitter which has a small 4 pin input plug. I want to find out what the proper name for this type of connector so I can buy spares for it - maybe someone here can ...
2
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3answers
557 views

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 ...
3
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1answer
387 views

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 ...