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Hi Peter, |
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On Tue, Mar 17, 2009 at 12:31 AM, Peter Stuge <peter@×××××.se> wrote: |
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> Christopher Friedt wrote: |
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>> Can anyone on the list recommend a good kit for a tunable USB radio |
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>> transceiver? |
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> |
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> That quite generic. What frequency range? What will you transceive? |
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> What bitrate do you need? How cooked does your interface need to be? |
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It would have to be in the 1-2 GHz range - this is mainly a range |
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imposed by the size of the required antenna. |
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Most digital cmos image sensors essentially have two 'channels'. The |
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first is unidirectional, which carries the data away from the sensor, |
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and the second is bidirectional, and is often an i2c bus for control |
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and configuration. The i2c bus is very low-frequency, 10 kHz - 100 |
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kHz, while the data channel is rather high (up to 60fps, with 640x480 |
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resolution, and 24bpp, in RGB24 or YUV420p format, for example). It |
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might be possible to do jpeg compression at the source, if power / |
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space permits. |
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In any event, a digital signal will be modulate the transceiver |
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signal, with appropriate coding to ensure that the information is |
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received correctly - right now they're getting quite a bit of noise |
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using a simplistic analog camera / transmitter. |
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If you have any ideas about certain chips, I would love to hear them. |
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Size and power are of course the main concern. |
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Cheers, |
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Chris |
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