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:
Jan. 30, 1990
Filed:
Aug. 22, 1988
Paul B Newland, Middletown, NJ (US);
American Telephone and Telegraph Company, New York, NY (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
An antenna arrangement for the base unit of a cordless telephone which consists of separate antennas for transmission and reception. A whip antenna is used for transmission, whereas the telephone Tip/Ring wiring is used for reception. The telephone Tip/Ring wiring operates as an antenna with a moderate distributed capacitance to ground. Radiation from the handset can be acquired almost anywhere along the house telephone wiring and can be then conducted to the cordless telephone base receiver by the same wire. Therefore, the telephone wiring serves dual purposes as an antenna and as a feed-line. Because the transmitter and the receiver of the antenna arrangement are isolated, the receiver input filter is simple and easy to tune. The transmitting whip antenna is considerably smaller than the conventional whip antenna used for both transmission and reception, and its filters are also easier to tune than when used in a duplexer configuration.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile