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:
Oct. 24, 1989
Filed:
Oct. 27, 1987
Noboru Saegusa, Tokyo, JP;
Toshihiro Hara, Tokyo, JP;
Ryoji Kawasaki, Tokyo, JP;
Kazuyuki Tate, Aichi, JP;
Syoji Huse, Tokyo, JP;
Koji Ono, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Nippon Telegraph and Telephone Corp., Tokyo, JP;
Kabushiki Kaisha Toshiba, Kanagawa, JP;
Abstract
A cordless telephone system includes a connector connected to a subscriber telephone line and at least one radio telephone set through a radio channel to establish or hold a communication channel between the ratio telephone set and a subscriber. The connector includes a control unit incorporating a timer. The control unit sets the system in a self hold state in which the radio channel is kept connected or a complete hold state in which the radio channel is disconnected on the basis of a hold signal from the radio telephone set, the presence/absence of a radio reception signal within a predetermined period of time preset in the timer, and the type of reception signal.