JVC infrared remote protocol
The JVC infrared remote protocol is almost equal to the daewoo protocol.
It are just the timings and the spacer between the address and data bits who differs a little bit.
By the JVC protocol a logical 0 bit exists of a high puls with a duration time of 600 µs followed
by a low puls of 550 µs this.
A logical 1 bit is formed by a high on time of 600 µs followed by low signal of 1600 µs.
The carrier frequency of the infrared signal is 38 kHz. When you will decode the signal with an
integrated receiver module you need a receiver module wich is tuned on 38 kHz like the TSOP1838
fabricated by Vishay. It will function also with a 36 kHz module but the sensitivity is less than by a
38 kHz module.
Because the receiver (mostly in hobby applications a microprocessor) needs to trigger on a new
received code the protocol starts with a start bit of 8ms high level pulse and a 4 ms low level pulse.
After this the 7 address bits and 7 command bits are transmitted.
Terminating the protocol is done with an another high level signal of 600µs.
The time between two startbits of bitstreams when the button on the remote control is being pressed =
60 ms but the start header is only once transmitted in the beginning of the keypress.

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