Specify video format, e.g. NTSC, ATSC, VGA, etc.

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0answers
54 views

How to build a video camera [closed]

For one of my project I need around 100 video cameras. But I cannot spend so much money for the cams. I'm thinking is it possible to build or assemble my own video camera for low cost. So what I ...
1
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1answer
45 views

Phase in NTSC and TMS9918

In the YIQ space (I am referring to this wikipedia's article) colors with phases near 0 are close to red. In the TMS9918 datasheet's table, however, in the expression of colors as A' and phase, blue ...
1
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1answer
65 views

How to make a simple Video Switch?

I thought making this would be simple, but I've found it a lot harder than I anticipated! What I mean is that I have one screen/monitor, and two video players (all video is through RGB component, RCA ...
0
votes
1answer
171 views

SCART to VGA adapter - green picture

I want to connect my DVD player which has a SCART output to a computer LCD monitor with VGA input. The DVD player supports the Progressive scan mode. It supports both PAL and NTSC. I've built this ...
1
vote
0answers
21 views

Video guidance system for 3pi robot to PC

I am currently working on a graduate project. It aims to build the guidance video system from 3pi robot. The video input would determine the types of action that the robot needs to executed. I'd like ...
1
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2answers
67 views

Example of a PLL for video genlocking

I am looking for an example of a video genlock pixel clock generate using a PLL synchronized to the video sync signals. Such things seem to be rather rare now as everything has moved to highly ...
2
votes
2answers
78 views

How to generate a composite video

I am working on a project that will output either NTSC or PAL video. The video is mainly text (color and Hebrew text) on top of a background image (that I need to download to the microcontroller). ...
2
votes
1answer
35 views

Best method for trasmitting multiple video feeds at once via Bluetooth or WiFi?

If I want to transmit several video feeds via Bluetooth or WiFi what would be the best method to do so in order to save on bandwidth, increase speed, and maintain quality? I wanted to know what is ...
1
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0answers
274 views

Audio + Video Transmitter + Reciever With 5 - 10 KM Range Circuit Diagram [closed]

I'm looking for a circuit diagram for a audio (doesn't have to be stereo) with video transmitter and reciever that has a range of more that 5 kilometers. I don't really have any limits on power ...
0
votes
2answers
54 views

Cell phones video encoding

My question is, how are cell phones bale to produce on the fly video like mp4? Are they using a hardware encoder chip? Because most of them run on ARM chips? Are there ARM chips that can handle the ...
0
votes
4answers
270 views

Strange amplitude fluctuation in video signal

I am reading a video signal from a CCD array. For some reason I get this extreme vertical jitter. I use decoupling and bypass caps everywhere possible. But it does not seem to be the noise issue. Any ...
4
votes
1answer
125 views

Can the DS1052E be used for reliable NTSC measurement?

I'm in the market for an oscilloscope. I've read that the infamous DS1052E from Rigol is a great beginner scope due to the price/performance. However, I know I have a lot to learn and simply don't ...
2
votes
1answer
87 views

Calculate highest modulating frequency for T.V. system

Calculate the highest modulating frequency for following data: Case: Alternate black and white dots for equal vertical and horizontal resolution.The no. of scanning lines are 250.Interlace ratio is ...
3
votes
5answers
759 views

Why there is 625 lines [ PAL ] in T.V. scanning or odd lines?

I can't get why there are 625 lines in a PAL scanning system. I read R.R.Gulatti's standard book. In that there is a reason like: "Suppose there are x lines in 1 field. Then for two field its ...
2
votes
2answers
175 views

Can a composite video line doubler be made using simple hardware components? (composite -> progressive scan)

I have a lot of old analog video equipment and my trusty Apple IIe Color Monitor is finally dying. Since CRT's aren't produced anymore, and because I just am interested in how it is done, I obtained a ...
0
votes
0answers
34 views

Video fader/mixer [duplicate]

I have a project to make a video mixer from one source to other source, using a scroll just like this Can you give me an idea how to do this? I'm new in electronic stuff so your suggestions would ...
1
vote
0answers
81 views

DSP board for non-standard video output? [closed]

I've got a project that requires outputting three arbitrary video signals at video rates. The idea is that two of them represent the x and y axes of a raster scan, and the third carries monochrome ...
6
votes
1answer
451 views

VGA Decoding - Dealing with tolerances

Update: The VGA Simulator is up and running. You can go simulate your own designs or just use the example file to see it working. I also wrote a blog post to help anyone get started using it for ...
0
votes
2answers
249 views

Microcontroller with Video input preferably composite

I am looking to build a project that will take video input from several different cameras that have composite output. I am wondering if there are any micro controllers or shields out there that will ...
1
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2answers
78 views

Technical hurdles for high-frequency video output implementation

I'm wondering if HDMI or DVI formats support the display of input signals at high frequency > 240Hz. Most current TVs only display high frequency video from signal interpolation, but only capture ...
0
votes
1answer
109 views

How can I prevent monitor black-out when using boosted HDMI over Cat 6? [closed]

Thanks for looking! I wasn't sure if this question belonged in the EE Stack, but after thorough searching, I feel it isn't a question that comes up in normal product use. Background: I recently ...
1
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0answers
599 views

RGBHV (VGA) to YPbPr Converter and Waveforms?

Purely for hobby, I am working on an RGBHV (VGA) to YPbPr (Component) converter circuit for old games consoles modified to output RGBHV on a VGA cable. From the game consoles, the RGB signal is taken ...
-1
votes
1answer
106 views

How digital video is processed? [closed]

I'm not sure if I'm using the right words, but I would like to learn how digital video works. I have a book that explains how VGA works and how to implement it on FPGA. I would like to know what kind ...
1
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2answers
136 views

How to best “synchronize” image producer/consumer to handle different FPS?

I'm building a system that among other things has an imaging sensor spitting out digital video @ 30 fps and a display system that displays to a monitor @ 60 fps. The system currently utilizes a frame ...
2
votes
3answers
172 views

Is there a terminal-on-chip?

What I want is a chip that can be connected to an MCU over an UART which outputs textit receives over VGA or composite in text mode to a display in monochrome or color and optionally accepts VT100 ...
0
votes
2answers
414 views

Arduino controlled video switch

I wan to build a video switcher with 2 channels, something that has 2 video input (left/right channels) and 1 video output. And control it with Arduino. The input channels will be 2 dvd player and ...
0
votes
0answers
180 views

Display controller chip with parallel 24-bit RGB input for video rotation/scaling

I am looking for a display controller chip that has digital video input (parallel 24-bit RGB888) and is capable of scaling and rotating video images to be displayed on a 10" TFT-LCD. I'm streaming ...
1
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1answer
175 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
votes
3answers
381 views

Extract information from video through HDMI input processing

I need to develop a prototype of a device that does the following: Take an HDMI input For each frame extract a small region of the screen. It's a small bar indicating some changing value. Convert ...
0
votes
0answers
114 views

Is it possible to modify an HDMI/coax/PC video signal?

My apologies in advance if this is not a good question. I'm new to this portion of StackExchange, and I'm just trying to find out if something is possible and I'm doing research. Is it possible to ...
0
votes
0answers
64 views

Tutorials For DaVinci DM6446

My company uses DaVinci DM6446 EVMs for video processing applications and i would like to start learning programming both DSP and ARM, however, i couldn't find any tutorials for beginners. We use ...
0
votes
1answer
532 views

using relay to switch between video outputs

Hey all I have a simple question... would I be able to send a video signal (composite) to each relay per camera? Reason being is that I only have one video input but need to be able to use 2 cameras ...
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votes
2answers
174 views

Video processing using FPGA and GPU [closed]

So, I have this really abstract idea, any tips or ideas will be much appreciate. I have an input video stream, I want to process it and throw it out as fast as possible, I don't believe a regular PC ...
2
votes
2answers
112 views

Regulate brightness over video composite signal

I have a b/w camera that outputs a video composite signal. At night it works very well, but during the day it's so bright everything just turns white. Is it possible to add a potentiometer to be able ...
4
votes
1answer
540 views

Is there an FPGA based vector graphics card project?

I have been messing around with VGA projects as my latest interest. I have a Xilinx Spartan 3E 250K FPGA, which has just barely too little RAM for a full 640x480 frame buffer. So, I'm looking at ...
5
votes
2answers
922 views

How do analog video signals work

I have always wondered how an only 1 wire line (signal and ground) can make a whole color image appear on a screen full of thousands of pixels. How exactly do these signals work and what ...
2
votes
3answers
422 views

Generation of text on composite video

I'm building a homebrew computer. I want some way to get video out, preferably along the lines of 80x25 text. I'm not interested in framebuffer graphics. Does such a thing exist as a single-chip text ...
-2
votes
1answer
82 views

nvidia display adapter downgraded itself to HD [closed]

I am experiencing something strange in one of my laptops that I haven't seen before. The laptop is an ASUS K52JC, has an Nvidia Geforce 310M. I have it setup as a dual boot with both windows 7 and ...
-3
votes
1answer
117 views

Transmit video from a usb/ttl camera [closed]

I'm currently working on a project which requires to transmit video wirelessly(RF).After I've done tons of research online,I still don't have a clue how to achieve this. Is there a kind of IC that ...
-3
votes
1answer
2k views

Can I connect a BNC output of DVR to the antenna input of a LED TV? [closed]

I have a DVR and a LED TV. The DVR provides 2 video outputs, VGA and BNC but the LED TV only accepts 2 possible video input (HDMI and antenna socket). In my mental model, as the BNC output of DVR and ...
3
votes
1answer
209 views

Bandpass Filter Design 6Mhz/6.5Mhz Center Approx +/- 250khz passband for ATV system

I'm looking to build two bandpass filters centered at 6Mhz and 6.5Mhz, with an approximate passband of 250kHz. I want to replace these two filters: http://www.yoketant.com.tw/yoketant/ceramic-7.htm ...
2
votes
2answers
732 views

Adding WiFi to OSLess embedded device

I'm looking for some advice as to the best way to achieve wireless video streaming from an OSLess embedded system we are building. I have never done any work with WiFi before so all the help I can ...
2
votes
1answer
2k views

how to convert a Sync-on-green to VGA (seperate sync) signal?

I have a computer (VAXstation 3100/M76), that has a sync-on-green output: red --( green + sync --( blue --( I want to attach that to a standard ...
2
votes
2answers
166 views

Why does analog video signal in computers change?

I've been told that analog video signal from computer's graphics card changes somehow, and because of that there is an "auto" button on many monitors that connect via d-sub. Why does the video signal ...
3
votes
1answer
139 views

Memory interface for video output

I am designing a system where a DSP (like the TMS320VC5501) processes some video data and outputs it to a PSP screen (the ones sold on sparkfun). The issue I'm having here is designing the video ...
1
vote
2answers
388 views

Video Composite signals

What are the considerations for PCB layout, and connector selection for video signals. Is it necessary to follow 75ohm impedance criteria in a closed system. The pipeline starts at Sony FCB IX 11 A ...
2
votes
1answer
121 views

Video Transmitter/Receiver Books&Schematics [closed]

I'm looking to build a video/audio or just video transmitter and receiver for use in robots. I'm primarily doing it as an excercise, but I'd love to be able to get a range of 100-200 meters. I'd love ...
0
votes
3answers
278 views

What would be the cheapest way to get video signal?

I have an OSD that I would fiddle around with till I'll get new camera. For OSD to work, I need PAL video signal, it may be anything, like black only. I was thinking may be test video signal ...
0
votes
3answers
9k views

Transmitting a video stream through a microcontroller's wifi

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 ...
1
vote
2answers
6k 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 ...