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. 09, 2006
Filed:
Oct. 04, 2001
Masami Aizawa, Yokohama, JP;
Masami Aizawa, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A receiving apparatus includes a demodulation circuit which estimates a transfer function of a reception signal in which a time domain has been converted into a frequency domain and demodulates the reception signal according to a demodulation method corresponding to the estimated transfer function, a reliability determining circuit which determines the reliability of the demodulation signal based on the transfer function estimated by the demodulation circuit, a variation detecting circuit which detects a variation amount of the demodulation signal on a frequency base, time base, a de-mapping circuit which subjects the demodulation signal to a de-mapping process and in which the contents of the de-mapping process are changed according to the result of determination in the reliability determining circuit and the result of detection in the variation detecting circuit, an error correction circuit which makes error correction based on the signal subjected to the de-mapping process.