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:
Apr. 23, 1991
Filed:
Aug. 02, 1989
Hideki Oto, Saitama, JP;
Kabushiki Kaisha Toshiba, Kanagawa, JP;
Abstract
A television tuner for use in a television receiver to receive a VHF band signal, a UHF band signal, and a satellite band signal converted from a received satellite signal, all of which are provided as a combined signal by a signal combiner. The television tuner includes an input terminal to receive the combined signal from the signal combiner, a first oscillator having a variable frequency, a first mixer to receive the combined signal and the output of the first oscillator to convert the combined signal into a first intermediate frequency signal if the VHF and UHF signals are to be utilized by the television receiver, or a second intermediate frequency signal if the satellite signal is to be utilized by the television receiver, first and second band-pass filters connected to the first mixer to receive first and second intermediate frequency signals, wherein the first band-pass filter is designed to pass the first intermediate frequency signal and the second band-pass filter is designed to pass the second intermediate frequency signal, and a processing circuit for processing the signals passed by the first and second band-pass filters to provide a standard VHF and UHF television signals and a frequency modulated satellite signal.