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. 20, 1981
Filed:
Apr. 16, 1979
Hiroshi Haruki, Yokohama, JP;
Masahiro Watanabe, Sagamihara, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
A frequency synthesizing system for use in an AM.multidot.SSB transceiver of double conversion type comprising a single crystal oscillator in its PLL synthesizer. The fundamental frequency of the PLL synthesizer provided by the oscillation of the crystal oscillator is selected to be n times (where n is an even number) the second intermediate frequency of the transceiver so that all the frequencies required for the operation of the AM.multidot.SSB transceiver can be derived from the oscillation frequency of the single crystal oscillator, whereby to simplify the structure of the AM.multidot.SSB transceiver and to facilitate the adjustment of the transceiver.