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:
Aug. 12, 1997
Filed:
Jul. 26, 1995
Hisakazu Ohmori, Kawasaki, JP;
Yoshinori Ishii, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A phase-comparison bit synchronizing circuit for establishing bit phase synchronization of signals transmitted by way of TDMA can reproduce data properly even in the presence of disturbance. A plurality of phase shifting units shift the phase of a given burst signal in a received frame, and a bit phase synchronizing unit synchronizes the bit phases of output signals from the phase shifting units. A determining unit determines an optimum one of the phase shifting units, and a first selecting/outputting unit selects and outputs a signal which is produced when the given burst signal is shifted in phase by the optimum phase shifting unit. A memory unit stores the identification code of the phase shifting unit which is determined by the determining unit. A second selecting/outputting unit selects a signal produced when a burst signal in a next or succeeding received frame which corresponds to the given burst signal is shifted by the phase shifting unit whose identification code has been stored by the memory unit, and synchronized in bit phase by the bit phase synchronizing unit, and outputs the selected signal as bit reproduced data.