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. 12, 1993
Filed:
Dec. 06, 1991
Hidenori Hidaka, Tokyo, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
Carrier frequencies different in frequency from each other are modulated with broadcast signals different from each other, and the thus modulated signals are transmitted through a single transmission line and are suited for reception and demodulation. A programming circuit allows programming of a plurality of different programs, with each program being able to be programmed to activate any selected receivers of a plurality of receivers, and to tune each of the selected receivers to any selected carrier frequency. The different programs are stored in a memory, and each of the receivers is connected to a speaker. A selection circuit allows a user to select any one of the different programs to output the broadcast signals at selected frequencies from selected speakers.