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:
May. 25, 1999
Filed:
Mar. 20, 1997
Anritsu Corporation, Tokyo, JP;
Abstract
A radio communication analyzer tests the signal characteristics of a carrier, as a target signal to be tested, which has undergone quadrature modulation using a digital data signal output from a radio unit to be tested. A quadrature demodulation section performs quadrature demodulation of the target signal and outputs a baseband signal. A storage section stores the waveform data of the baseband signal. A clock synchronous detection section detects clock synchronization information contained in the target signal based on the waveform data. A demodulation section sequentially reads out the waveform data and obtains demodulated digital data in accordance with the clock synchronization information. A burst synchronous detection section generates burst synchronization information representing a burst start position of the target signal on the basis of the demodulated digital data or the waveform data.