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. 05, 2013
Filed:
Dec. 17, 2010
Toru Matsuura, Kanagawa, JP;
Kenji Miyanaga, Kanagawa, JP;
Toru Matsuura, Kanagawa, JP;
Kenji Miyanaga, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Disclosed are an angle modulator, a transmission apparatus, and a radio communication apparatus that can compensate phase discontinuity when an operational mode of a voltage controlled oscillator is switched. Angle modulator () includes phase difference detection section () that detects a difference of phases between an input signal of subtractor () and an angle modulated signal, using the result of subtraction by subtractor () of frequency locked loop circuit (); correction control section () that generates a control signal for compensating that difference of phases based on that difference of phases; correction section () that corrects the phase of the angle modulated signal by adding the control signal to an input signal of angle modulator (), an input signal of loop filter (), or an input signal of VCO () during a predetermined period after VCO () switches the operational mode (from time tto time t).