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:
Apr. 17, 1990
Filed:
Sep. 30, 1988
Toshiharu Yagi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A decoder is capable of decoding on a maximum likelihood basis coded symbols of requivalently high coding rate which are produced by deleting those code bits which are located at particular positions in a time sequence of convolutional symbols of low coding rate. The decoder includes a serial-to-parallel (SP) converter for converting a serial data sequence from a dummy bit inserter into parallel sequences. The frequency division phase of the SP converter is determined by a second timing signal which the dummy bit inserter produces in synchronism with a dummy bit inserted phase. A code synchronization is established, frequency division phase synchronization is automatically established. This eliminates the need for the repetitive trial for frequency division phase synchronization only and thereby reduces a synchronization capture time.