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

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-1
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0answers
40 views

Create Video recorder from laptop webcam [closed]

I have a broken laptop, Dell Studio 1558. I would like to create a video recorder utilizing its webcam. Would anyone mind helping me create a video recorder from it's webcam?
0
votes
4answers
242 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 ...
3
votes
1answer
93 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
65 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
350 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
110 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
77 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
307 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
179 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
vote
2answers
76 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
93 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
vote
0answers
473 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
94 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
vote
2answers
110 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
154 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
308 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
160 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
vote
1answer
158 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
225 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
109 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
52 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
363 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
142 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
103 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
446 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
658 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
365 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
76 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
110 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 ...
-2
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
195 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
586 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
1k 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
1answer
146 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
134 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
371 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
113 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
244 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
7k 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
4k 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 ...
2
votes
1answer
289 views

1.2 GHz Cloverleaf Antenna tolerance

I'm working on building my own Cloverleaf antennas, to work at 1.2 GHz, for the video system on my Quadcopter. At this frequency, what kind of tolerance am I looking at in terms of the length of the ...
1
vote
2answers
882 views

develop webcamera with battery and memory to SELF RECORDING (Disc Processing System)

In my studies projects I want to make an camera with SD memory card or USB mass storage (which is simple) micro-controller to translate commands (start recording, dump JPEG to SD card to ...
0
votes
2answers
865 views

How to feed an SPI TFT display a signal from a composite video source

Here is the module I am looking at: 1.8" Serial 128X160 SPI TFT LCD Module Display + PCB Adapter with SD Socket So my question is, is there any way I could convert a video signal from a composite ...
3
votes
3answers
738 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 ...
0
votes
1answer
293 views

Mesh network with high data rate on 868MHz

I need to create a wireless network with high expactations to redundancy and security, making my choise fall on a mesh type network. Between the nodes I should be able to transfer video or at least ...
6
votes
2answers
234 views

Does VGA have to be drawn at 60hz?

I'm wanting to generate a VGA signal hopefully as painlessly as possible. I have an odd question though. Everywhere I see that VGA requires a 25MHz clock for the sync signals. Is it possible to ...
4
votes
1answer
228 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 ...
5
votes
2answers
159 views

What is “rabbit ear” in a video-capture context?

I was reading the TVP5158 datasheet, and ran into a register bit that would enable "rabbit ear". What is that?
4
votes
3answers
276 views

Sync video with data

When I have a datalogger and I want to sync a video-file to the recording, what would be an easy method? The logger and the camera both have an internal clock, but they may not be set exactly to the ...