Process to expand data density

Details Process to expand data density Process to expand data density

2006-11-21

2006-11-21

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Transceivers

Transmission interface between two stations or terminals

C375S240000, C375S260000, C375S356000, C370S505000, C370S506000

Reexamination Certificate

active

07139309

ABSTRACT:
A process for transmission of information between at least two devices comprises: generating a serial message coded by means of a time sequence of binary transitions called bits; reducing the time length of all bits in the message by changing them into shorter bits, in order to insert additional bits whose half duration falls at the moment in time where the transitions between unchanged bits occurred when no additional bits are inserted; keeping the half duration point of all reduced data bits to the same place as they were in the unchanged message; keeping the total duration of the message containing the additional bits identical to the total length of the unchanged message. The process is compliant with the MIDI standard and allows the increase of the amount of various distinct messages which it is able to convey.

REFERENCES:
patent: 5754635 (1998-05-01), Kim
patent: 5880391 (1999-03-01), Westlund
patent: 10126818 (1998-05-01), None
MIDI, the Musical Instrument Digital Interface Standard, Oct. 1994, pp. 1-3.
UART (Universal Asynchronous Receiver/Transmitter), Atmel Document: ref. 1042D-04/99, At 90S/LS2333 and AT90S/LS4433 Microcontrollers, pp. 44-50.

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