The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 1984
Filed:
Jan. 29, 1982
Applicant:
Inventor:
Edward J Groth, Jr, Scottsdale, AZ (US);
Assignee:
Motorola Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
375 48 ; 375 56 ; 3403 / ;
Abstract
A system for three frequency FSK modulation wherein binary data bits are sequentially encoded into a ternary system of channels designated '1', '0' and 'C', so that a data bit is encoded and transmitted in a 'C' channel whenever it is the same as the previous data bit and wherein a transmission in the 'C' channel is decoded as a continuation of the previous data bit. The data clock is recovered from the data stream at the transition between data bits and repeated data bits are detected as errors.
Groth, Jr, Edward. (1984). Data encoding and decoding communication system for three frequency fsk (U.S. Patent No. 4425666). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4425666
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile