Coding method for binary digits coding and its circuit for...

Details Coding method for binary digits coding and its circuit for... Coding method for binary digits coding and its circuit for...

2003-07-30

2008-12-09

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Pulse number modulation

C375S279000, C375S272000, C375S222000, C375S236000, C370S252000, C370S432000, C370S468000

Reexamination Certificate

active

07463682

ABSTRACT:
This invention presents a coding method for binary digits coding and its circuit for digits transmission. With this coding method, the binary digits are corresponding to a sequence of pulse groups. The binary digits “0” and “1” are corresponding to the two pulse groups with same defined number of pulses and with two special defined pulse frequencies respectively. The two pulse groups have the same defined number of pulses. The number is at least 2. The corresponding decoding method divides the sequence of pulse groups, according to the same defined number, into a set of pulse groups. The duration time of each pulse group is measured. The binary digits “0” and “1” are corresponding to the differences of the duration time of the pulse groups.

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“ADSL2 and ADSL2plus- The New ADSL Standards,” DSL Forum, Mar. 25, 2003.

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