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:
Jun. 15, 2010
Filed:
May. 09, 2006
Gordon Ryley, Calgary, CA;
Ralph Tischler, Richmond, CA;
Allan Chi-yun Wong, Hong Kong, HK;
Jagjit Grewal, Surrey, CA;
Stephen G. Kropp, Surrey, CA;
Gordon Ryley, Calgary, CA;
Ralph Tischler, Richmond, CA;
Allan Chi-Yun Wong, Hong Kong, HK;
Jagjit Grewal, Surrey, CA;
Stephen G. Kropp, Surrey, CA;
VTech Telecommunications Limited, Tai Po, New Territory, HK;
Abstract
A multi handset telephone system with a wireless telecom/doorbell module. The telecom/doorbell module has similar electronics as a cordless handset that includes audio and RF link with a base unit. A speakerphone functionality of a wireless telecom/doorbell audio processor is used to provide an intercom audio conversation. The wireless intercom/doorbell module is battery powered that is either charged by an AC adapter or by an existing doorbell wiring. The wireless intercom/doorbell module also work in parallel with the existing bell wiring. When a page key is pressed, the module pages the telephone system and shorts the doorbell wiring to make an existing bell ring. The doorbell module is coupled with a camera.