Source: http://www.google.com/patents/US7580479?dq=5,890,152
Timestamp: 2017-07-27 08:07:41
Document Index: 486759783

Matched Legal Cases: ['application No. 2002', 'Application No. 200310118026', 'Application No. 200310118026', 'Application No. 2002', 'Application No. 2002', 'Application No. 2006', 'Application No. 2006', 'Application No. 2006', 'Application No. 2006']

Patent US7580479 - Receiving method and receiver - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsBaseband BB input units input baseband received signals. An initial weight data setting unit sets weighting coefficients to be utilized in the interval of a training signal as initial weighting coefficients. A gap compensating unit compensates control weighting coefficients with a gap error signal and...http://www.google.com/patents/US7580479?utm_source=gb-gplus-sharePatent US7580479 - Receiving method and receiverAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS7580479 B2Publication typeGrantApplication numberUS 11/487,323Publication dateAug 25, 2009Filing dateJul 17, 2006Priority dateNov 20, 2002Fee statusPaidAlso published asCN1303768C, CN1503472A, CN1933353A, CN1933354A, CN1933355A, CN1941658A, CN101094020A, EP1422838A2, EP1422838A3, US7003054, US7031413, US7136438, US7453955, US7471750, US7551700, US7711072, US20040106386, US20050169403, US20050175121, US20050180535, US20060256899, US20060256900, US20060256901, US20060256902, US20060256903, US20060256904, US20060256905, US20070147545Publication number11487323, 487323, US 7580479 B2, US 7580479B2, US-B2-7580479, US7580479 B2, US7580479B2InventorsYoshiharu DoiOriginal AssigneeSanyo Electric Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (49), Non-Patent Citations (11), Classifications (12), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetReceiving method and receiver
US 7580479 B2Abstract
Baseband BB input units input baseband received signals. An initial weight data setting unit sets weighting coefficients to be utilized in the interval of a training signal as initial weighting coefficients. A gap compensating unit compensates control weighting coefficients with a gap error signal and outputs the updated weighting coefficients acquired as a result of the compensation. A weight switching unit selects the initial weighting coefficients in the interval of the training signal and selects the updated weighting coefficients in the interval of the data signal. Then the weight switching unit outputs the selected initial weighting coefficients and updated weighting coefficients as the weighting coefficients. A synthesizing unit weights the baseband received signals with the weighting coefficients and then sums them up.
receiving, from a transmitter, a first signal from a first antenna terminal and a second signal from a second antenna terminal wherein the first signal and the second signal each contains at least one packet having a training interval and a data interval;
correlating the first and second signals with a stored reference signal in a period during which the first set of weighting factors is used, to determine a second set of weighting factors; and
2. A method according to claim 1, further receiving, from the transmitter, a third signal from a third antenna terminal wherein the third signal contains at least one packet having a training interval and a data interval.
4. A method according to claim 3, further comprising updating the second set of weighting factors, based on the gap error signal.
an input unit configured to receive, from a transmitter, a first signal from a first antenna terminal and a second signal from a second antenna terminal wherein the first signal and the second signal each contains at least one packet having a training interval and a data interval;
a weight computation unit configured to correlate the first and second signals with a stored reference signal in a period during which the first set of weighting factors is used, to determine a second set of weighting factors; and
6. A receiver according to claim 5, wherein the input unit is configured to receive, from the transmitter, a third signal from a third antenna terminal wherein the third signal contains at least one packet having a training interval and a data interval.
7. A receiver according to claim 5, further comprising a gap measuring unit configured to measure a channel response of the first signal or the second signal and to use the measured channel response to generate a gap error signal for correcting a phase gap in an output signal of the array synthesizer.
8. A receiver according to claim 7, further comprising a gap compensating unit configured to update the second set of weighting factors, based on the gap error signal.
9. A method for processing a received signal, the method comprising:
performing an adaptive algorithm on the first and second signals in a period during which the first set of weighting factors is used, to determine a second set of weighting factors; and
10. A method according to claim 9, further receiving, from the transmitter, a third signal from a third antenna terminal wherein the third signal contains at least one packet having a training interval and a data interval.
12. A method according to claim 11, further comprising updating the second set of weighting factors, based on the gap error signal.
a weight computation unit configured to perform an adaptive algorithm on the first and second signals in a period during which the first set of weighting factors is used, to determine a second set of weighting factors; and
14. A receiver according to claim 13, wherein the input unit is configured to receive, from the transmitter, a third signal from a third antenna terminal wherein the third signal contains at least one packet having a training interval and a data interval.
15. A receiver according to claim 13, further comprising a gap measuring unit configured to measure a channel response of the first signal or the second signal and to use the measured channel response to generate a gap error signal for correcting a phase gap in an output signal of the array synthesizer.
16. A receiver according to claim 15, further comprising a gap compensating unit configured to update the second set of weighting factors, based on the gap error signal. Description
This application is a divisional application of Ser. No. 10/716,495, filed Nov. 20, 2003, now U.S. Pat. No. 7,453,955 which claims priority of Japanese Patent application No. 2002-337,307, filed Nov. 20, 2002, and the contents of which are herewith incorporated by reference.
The modulator 102 modulates an information signal to be transmitted and generates the transmission signal (hereinafter one signal included in the transmission signal is also called as a “symbol”). Any arbitrary modulation scheme may be utilized, such as QPSK (Quadri Phase Shift Keying), 16QAM (16 Quadrature Amplitude Modulation), GMSK (Gaussian filtered Minimum Shift Keying). In the following embodiments, examples are described where the QPSK is utilized. Moreover, in a case of a multi carrier communication, the transmitter 100 is provided with the plurality of modulators 102 or inverse Fourier transform units. In a case of a spectrum spreading communication, the modulator 102 is provided with a spreading unit.
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No. 11/094,220, filed Mar. 31, 2005, Yoshiharu Doi.10U.S. Appl. No. 11/094,221, filed Mar. 31, 2005, Yoshiharu Doi.11U.S. Appl. No. 11/094,370, filed Mar. 31, 2005, Yoshiharu Doi.Classifications U.S. Classification375/316, 375/347, 375/319, 375/142, 375/343, 375/150International ClassificationH04J11/00, H04B7/08, H03K9/00, H04L27/00Cooperative ClassificationH04B7/0854European ClassificationH04B7/08C4J2Legal EventsDateCodeEventDescriptionOct 2, 2012FPAYFee paymentYear of fee payment: 4Jun 15, 2014ASAssignmentOwner name: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMEFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SANYO ELECTRIC CO., LTD.;REEL/FRAME:033104/0885Effective date: 20140612Apr 7, 2017REMIMaintenance fee reminder mailedRotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services