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:
Apr. 01, 2008
Filed:
Aug. 22, 2001
Junichi Yamagishi, Tokyo, JP;
Junichi Yamagishi, Tokyo, JP;
Unirec Co., Ltd., Tokyo, JP;
Abstract
A wireless call system enables even a bedridden person to easily answer a visitor. The wireless call system has an outdoor unit () installed on the outside of an entrance of a structure having a door () lockable with an electronic lock (), for calling a resident in the structure, and an indoor unit () connected to the outdoor unit () by radio, for informing the resident of the presence of a visitor upon receiving a signal from the outdoor unit () and allowing the resident to answer the visitor through the outdoor unit (). The outdoor unit () has an image pickup unit () for picking up an image of the visitor making a call with the outdoor unit (). The indoor unit () is portable and has a display () for displaying the visitor's image picked up by the image pickup unit () and control buttons () for unlocking the electronic lock () if necessary. The resident can carry the indoor unit () to an optional location, and at the location, check the visitor displayed on the display () and unlock the electronic lock () through the control buttons () after checking the visitor.