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:
May. 21, 1996
Filed:
Aug. 09, 1994
Winston H Lieu, Somerset, NJ (US);
AT&T Corp., Murray Hill, NJ (US);
Abstract
A cellular telecommunications device and method for achieving dual-mode cellular communications. The cellular telecommunication device comprises switchable loop filters, a loop filter switch controller, a programmable frequency synthesizer, and a voltage controlled oscillator arranged in a phase-locked loop configuration. The switchable loop filters comprise low-pass filters to optimize the performance of the device in both the analog and digital modes of cellular communications. Mode changes are facilitated by the switch controller which automatically configure the loop filters arrangement in response to a mode code sent to the cellular device from a cellular base station.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile