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:
Nov. 02, 1976
Filed:
May. 05, 1975
Kazumi Kawashima, Kyoto, JA;
Abstract
In a channel selector of the type having an electronic tuner in which the channel selection voltage, which is different for each channel, is applied across a voltage-variable reactance element such as a varactor diode in order to select and receive the desired channel, each channel selection voltage is converted into the digital signal, and is stored in a memory block, and in selecting the desired channel, the corresponding digital signal is read out of the memory block and is converted into the analog channel-selection signal to be applied to the tuner. A completely electronic channel selection becomes possible because any mechanical parts such as variable resistors for storing the channel selection voltages may be eliminated.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile