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31. 发明专利

BR0302820A 未知
公开(公告)号：BR0302820A
公开(公告)日：2004-03-09
申请号：BR0302820
申请日：2003-01-22
申请人： THOMSON LICENSING SA
发明人： LITWIN LOUIS ROBERT , VELEZ DIDIER
IPC分类号： G06F11/10 , G11B20/18 , H03M13/15 , H03M13/29 , H04L1/00 , H03M13/00
摘要： A decoder and decoding method are described, in which a syndrome is calculated from a codeword in a syndrome generator, an error polynomial is generated based upon the syndrome in an error polynomial generator, an error location is determined from the error polynomial in the error location generator, an error magnitude is calculated from the error polynomial in the error magnitude generator and the codeword is corrected by a error corrected codeword generator responsive to location and error magnitude. An intra-decoder block messaging scheme is described in which one or more components generate inactivity messages to signal an ability to process data corresponding to a next codeword. A dual Chien search block implementation is described in which Chien block is used to determine the number of errors corresponding to a specified codeword, separately from error location and magnitude calculations performed by the Chien/Forney block. An enhanced Chien search cell architecture is described which utilizes an additional Galois field adder to synchronize the codeword and error vector, thereby decreasing delay and expense corresponding to an error correcting block implemented with a LIFO register.

32. 发明专利

AU2003256667A8 Synchronization strategy and architecture for spread-spectrum receivers 未知
公开(公告)号：AU2003256667A8
公开(公告)日：2004-02-16
申请号：AU2003256667
申请日：2003-07-22
申请人： THOMSON LICENSING SA
发明人： MARGETTS ADAM ROBERT , LITWIN LOUIS ROBERT
IPC分类号： H04B1/69
摘要： An apparatus for synchronizing the reception of a spread-spectrum signal includes a synchronization apparatus having a code-matched filter, a running average unit coupled to the filter, a peak detector coupled to the running average unit, and a synchronizer coupled to the peak detector for providing an index of a peak. A corresponding method includes receiving a spread-spectrum signal having a period comprising a plurality of indexable samples, maintaining a mean array comprising a running mean value for each indexable sample over a variable number of periods, detecting a peak value of the array, calculating an average value of the array, computing a peak-to-average ratio in accordance with the detected peak value and the calculated average value, comparing the peak-to-average ratio against a time-varying threshold, and synchronizing the received signal when the peak-to-average ratio exceeds the current value of the threshold.

33. 发明专利

AU2003256667A1 SYNCHRONIZATION STRATEGY AND ARCHITECTURE FOR SPREAD-SPECTRUM RECEIVERS 未知
公开(公告)号：AU2003256667A1
公开(公告)日：2004-02-16
申请号：AU2003256667
申请日：2003-07-22
申请人： THOMSON LICENSING SA
发明人： MARGETTS ADAM ROBERT , LITWIN LOUIS ROBERT
摘要： An apparatus for synchronizing the reception of a spread-spectrum signal includes a synchronization apparatus having a code-matched filter, a running average unit coupled to the filter, a peak detector coupled to the running average unit, and a synchronizer coupled to the peak detector for providing an index of a peak. A corresponding method includes receiving a spread-spectrum signal having a period comprising a plurality of indexable samples, maintaining a mean array comprising a running mean value for each indexable sample over a variable number of periods, detecting a peak value of the array, calculating an average value of the array, computing a peak-to-average ratio in accordance with the detected peak value and the calculated average value, comparing the peak-to-average ratio against a time-varying threshold, and synchronizing the received signal when the peak-to-average ratio exceeds the current value of the threshold.

34. 发明专利

AU2003252050A1 BACKGROUND UPDATES FOR DATABASE INFORMATION ON A MOBILE DEVICE 未知
公开(公告)号：AU2003252050A1
公开(公告)日：2004-02-16
申请号：AU2003252050
申请日：2003-07-18
申请人： THOMSON LICENSING SA
发明人： LITWIN LOUIS ROBERT , MARGETTS ADAM ROBERT
IPC分类号： H03G3/20 , H03G3/30 , H04L27/08
摘要： An apparatus and method for automatic gain control in spread-spectrum communications includes an automatic gain control apparatus for a spread-spectrum receiver, including a received signal strength indicator, an analog amplifier in signal communication with the received signal strength indicator, an analog-to-digital converter in signal communication with the analog amplifier, a digital automatic gain control loop in signal communication with the analog-to-digital converter, and a digital-to-analog converter in signal communication with the digital automatic gain control loop for providing a signal indicative of a digital gain to the analog amplifier; where the corresponding method for automatic gain control in spread-spectrum communications includes receiving an analog signal, measuring the strength of the received analog signal, deriving a first analog gain in correspondence with the measured strength, applying the derived first analog gain to an analog amplifier, deriving a second analog gain from a pilot channel signal within an automatic gain control loop, deriving a digital gain from the pilot channel signal within the automatic gain control loop, and applying an automatic gain control signal indicative of the second analog gain and the digital gain to the analog amplifier.

35. 发明专利

AU2003213737A8 Method and apparatus for detecting the presence of a wireless local area network using a position location system 未知
公开(公告)号：AU2003213737A8
公开(公告)日：2003-10-08
申请号：AU2003213737
申请日：2003-03-05
申请人： THOMSON LICENSING SA
发明人： RAMASWAMY KUMAR , KNUTSON PAUL GOTHARD , WANG CHARLES CHUANMING , GAO WEN , LITWIN LOUIS ROBERT
IPC分类号： H04L12/28 , H04L12/56 , H04W64/00 , H04W84/12 , H04W88/06 , H04Q7/24

36. 发明专利

AU2003213737A1 METHOD AND APPARATUS FOR DETECTING THE PRESENCE OF A WIRELESS LOCAL AREA NETWORK USING A POSITION LOCATION SYSTEM 未知
公开(公告)号：AU2003213737A1
公开(公告)日：2003-10-08
申请号：AU2003213737
申请日：2003-03-05
申请人： THOMSON LICENSING SA
发明人： KNUTSON PAUL GOTHARD , GAO WEN , WANG CHARLES CHUANMING , RAMASWAMY KUMAR , LITWIN LOUIS ROBERT
IPC分类号： H04L12/28 , H04L12/56 , H04W64/00 , H04W84/12 , H04W88/06

37. 发明专利

AU2002356989A1 METHOD AND APPARATUS FOR PROVIDING CALLER ID INFORMATION WITH VOICEMAIL SERVICES SUPPLIED BY THE PHONE COMPANY 未知
公开(公告)号：AU2002356989A1
公开(公告)日：2003-06-10
申请号：AU2002356989
申请日：2002-11-20
申请人： THOMSON LICENSING SA
发明人： LITWIN LOUIS ROBERT
IPC分类号： H04M3/42 , H04M3/533
摘要： In a voicemail service system having a voicemail mailbox and a caller ID device that are remote from a user of the voicemail service system, there is provided a method for providing caller ID information to the user. A call to the user from another party is received, when a phone of the user is already in use (310). Caller ID information for the call is stored for subsequent playback to the user (320). The storing step may be performed irrespective of whether the other party leaves a voicemail message for the user.

38. 发明专利

BR0100686A 未知
公开(公告)号：BR0100686A
公开(公告)日：2001-10-09
申请号：BR0100686
申请日：2001-02-21
申请人： THOMSON LICENSING SA
发明人： BELOTSERKOVSKY MAXIM B , LITWIN LOUIS ROBERT
IPC分类号： H04J11/00 , H04L25/03 , H04L27/26
摘要： An Orthogonal Frequency Division Multiplexing (OFDM) receiver that compensates for FFT window drift by extracting pilots (62) from a fast Fourier transformed (56) and equalized (58) OFDM signal, and processing the extracted pilots to derive an FFT window adjustment factor (65) and an associated equalizer tap adjustment value (67). The OFDM receiver simultaneously controls the position of an FFT window and the phase of equalizer taps using the derived FFT adjustment factor and equalizer tap adjustment value.

39. 发明专利

BR0306998A 未知
公开(公告)号：BR0306998A
公开(公告)日：2007-04-03
申请号：BR0306998
申请日：2003-01-23
申请人： THOMSON LICENSING SA
发明人： LITWIN LOUIS ROBERT
IPC分类号： G06F13/00 , H04L29/06 , H04L29/08
摘要： There is provided a method for providing content to network devices in a communication network. A level of congestion of the communication network is determined ( 305 ). A cost of service is calculated based on the level of congestion ( 310 ). The network devices are informed of the cost of service ( 315 ). A first selection is received from a user of a network device specifying a content to be downloaded to the network device during a download process ( 320 ). A second selection is received from the user specifying a cost of service threshold for the download process ( 325 ). The cost of service is automatically compared to the cost of service threshold ( 330 ). The download process is automatically performed, when the cost of service is less than the cost of service threshold ( 335 ).

40. 发明专利

BRPI0407983A 未知
公开(公告)号：BRPI0407983A
公开(公告)日：2006-03-07
申请号：BRPI0407983
申请日：2004-01-30
申请人： THOMSON LICENSING SA
发明人： LITWIN LOUIS ROBERT , PANDIT PURVIN BIBHAS
IPC分类号： H04W4/16 , H04W60/00 , H04Q7/20
摘要： A method by a cellular network for notifying a caller when a called user is connected to the cellular network includes the steps of storing a phone number associated with a caller that wants to be notified when a called user is connected to the cellular network, registering the called user with the cellular network when a communication device associated with the called user becomes active on the network, and notifying the caller indicating that the communication device is active on the network responsive to the step of registering by the called user.

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