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.

Date of Patent:
Feb. 14, 1995

Filed:

May. 28, 1993
Applicant:
Inventor:

Hisashi Kondo, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455 381 ; 375106 ;
Abstract

In a radio paging receiver operable in response to a radio signal which includes a preamble signal, a call number signal, and a display information signal to decode the call number signal and the display information signal in synchronism with a sequence of internal clock pulses produced from a clock synchronization circuit, the internal clock pulses are also produced from the clock synchronization circuit during a time interval except for the preamble signal with reference to electric field intensity and a phase or a frequency difference between the internal clock pulse sequence and a sequence of digital signal derived from the radio signal. Specifically, the internal clock pulse sequence is produced again when the electric field intensity and the phase or the frequency difference become large so as to keep synchronization of the internal clock pulse sequence during reception of the radio signal.


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