Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1984-05-23
1987-02-03
Miller, Charles D.
Communications: electrical
Audible indication
Percussion-type sound producer
360 40, H03M 514
Patent
active
046411283
ABSTRACT:
Method of connecting a stream of data bits of a binary source signal into a stream of data bits of a binary channel signal. The data bit stream of the source signal is divided into a sequence of five authorized source words of variable lengths. Each of these five authorized source words are converted into a channel word having twice the number of data bits. This conversion has been chosen such that a very small error propagation is obtained and that at the same time very simple electronics are required. For dividing the data bit stream into information blocks and for providing the timing during the decoding operation a very suitable synchronizing word is used.
REFERENCES:
patent: 4501000 (1985-02-01), Immink
patent: 4536742 (1985-08-01), Immink
Lewis "IBM Technical Disclosure Bulletin", vol. 13, No. 8, Jan. 1971, pp. 2241-2242.
Briody Thomas A.
Miller Charles D.
Oisher Jack
Streeter William J.
U.S. Philips Corporation
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