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:
Dec. 08, 1998
Filed:
Sep. 24, 1996
Kinya Tsuchiyama, Shizuoka, JP;
NEC Corporation, Tokyo, JP;
Abstract
A radio selective calling receiver has a function of determining, when synchronization is established by a frame synchronization signal received from a radio base station, that the radio selective calling receiver is within a coverage zone of the radio base station, and determining, when the frame synchronization signal is not received within a predetermined time period after a step-out state is set, that the radio selective calling receiver is outside the coverage zone of the radio base station. The receiver includes a timer and a notification device. The timer starts to count when the step-out state is set and counts a time until the frame synchronization signal is received. The notification device notifies a count value when the frame synchronization signal is received after the lapse of the predetermined time period set in the timer.