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.:

US 7139329 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 21, 2006

Filed:

Sep. 20, 2001
Applicant:

Kishi Takahiko, Yokohama, JP;

Inventor:

Kishi Takahiko, Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A receiver has a low spurious level and a high frequency precision without increasing power consumption of a local oscillator. The receiver comprises first and second local oscillators; a phase locked loop operating based on an output of the first local oscillator; a first mixer for receiving an RF signal or an IF signal, and converting the received signal to a second IF signal according to an output signal of the phase locked loop; an analog-to-digital converter for converting an output signal of the first mixer to a digital signal; a second mixer for converting the digital signal to a detection process frequency according to an output of the second local oscillator; and a filter for bandpass filtering, interposed between the first mixer and the analog-to-digital converter or between the analog-to-digital converter and the second mixer.


Find Patent Forward Citations

Takahiko, Kishi. (2006). Receiver in a radio communication system (U.S. Patent No. 7139329). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7139329

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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