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公开(公告)号：FI115177B
公开(公告)日：2005-03-15
申请号：FI970963
申请日：1997-03-06
Applicant: MOTOROLA INC
Inventor： LABEDZ GERALD PAUL , STEWART KENNETH A
Abstract: Communication rate in a variable rate communication system is determined by calculating metrics based upon symbol energy over a traffic channel frame (200) and selecting an optimum rate based upon the calculated metrics. The metrics are calculated by selectively accumulating symbol energy, using adders (405-408) and accumulators (409-412) in response to the presence of power control groups (201) within the traffic channel frame (200), as determined by power control group selector (400).
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公开(公告)号：PT95577B
公开(公告)日：1998-07-31
申请号：PT9557790
申请日：1990-10-12
Applicant: MOTOROLA INC
Inventor： LABEDZ GERALD PAUL , BORTH DAVID EDWARD , RASKY PHILLIP DAVID
Abstract: In a communications network having time-dispersed signals, there is provided a mechanism for soft decision decoding. It comprises: radio reception of a time-dispersed signal, at least partly equalizing those time-dispersal effects, recovering information contained in the signal, multiplying with that recovered information the absolute value of that at-least-partly-equalized signal (scaled by a number derived from channel conditions over a time during which at least part of the information to be recovered is distributed), and error-correcting the multiplied information by a Viterbi algorithm channel decoding scheme of error correction. Accordingly, soft decision information is generated from within the equalization process itself.
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公开(公告)号：IN178656B
公开(公告)日：1997-05-31
申请号：IN407DE1990
申请日：1990-04-25
Applicant: MOTOROLA INC
Inventor： LABEDZ GERALD PAUL , RABE DUANE CARL
IPC: H04R11/06
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公开(公告)号：AT148293T
公开(公告)日：1997-02-15
申请号：AT88106385
申请日：1988-04-21
Applicant: MOTOROLA INC
Inventor： LABEDZ GERALD PAUL
Abstract: A cellular system employing time division messages transmitted from a plurality of radiators (407, 409, 411) in each cell is disclosed. A first electromagnetic signal at a particular frequency is transmitted during one time slot (903) from one of the plurality of radiators. A second electromagnetic signal at the same frequency is transmitted during another time slot (917) from a second one of the plurality of radiators. A remote unit (401,403) selects the best electromagnetic signal and communicates the selection to a cell controller (413), which selects a third time slot for transmission of a message from the radiator transmitting the best electromagnetic signal.
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公开(公告)号：IE71165B1
公开(公告)日：1997-01-29
申请号：IE330489
申请日：1989-10-13
Applicant: MOTOROLA INC
Inventor： DETTRO GREOGORY J , LABEDZ GERALD PAUL , ATKINSON FREDERICK GARLAND
Abstract: In a communications system having transmissions containing certain information-of-interest (147, 149) at predetermined intervals in the transmission, there is provided a method for isolating and processing that information-of-interest. The method is characterized by sensing the start of a transmission (141) and isolating for processing as the information-of-interest, the information received about instant(s) predeterminally removed in time (145) from the sensed start of transmission (141). Thus, the information-of-interest is isolated principally on the basis of elapsed time. The method for isolating and processing that information-of-interest is further characterized by sensing (249) the start of a transmission from the received signal power of the transmission exceeding a predetermined threshold (259); AGCing the transmission (233) and attenuating the AGC'd transmission from a maximum level to a desired level before the information-of-interest is expected to arrive; isolating for processing as the information-of-interest, the information received about instant(s) predeterminally removed in time from the sensed start of transmission, by timing (263) the expected interval between the instant that the start of the transmission is sensed and the predetermined instant that the information-in-interest should arrive (whereby the information-of-interest is isolated principally on the basis of elapsed time); tagging the information (247) isolated about that instant for processing; and beginning processing (275) with information just preceeding the isolated information (whereby the reliability of the information detection is enhanced by one-to-several bits).
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Patent Agency Ranking
公开(公告)号：FI95524C
公开(公告)日：1996-02-12
申请号：FI884940
申请日：1988-10-26
Applicant: MOTOROLA INC
Inventor： LABEDZ GERALD PAUL , BORTH DAVID EDWARD
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公开(公告)号：FI95524B
公开(公告)日：1995-10-31
申请号：FI884940
申请日：1988-10-26
Applicant: MOTOROLA INC
Inventor： LABEDZ GERALD PAUL , BORTH DAVID EDWARD
Abstract: The method and apparatus for rapid phase acquisition and random radio channel phase error compensation for a TDMA QPSK receiver is disclosed. Received quadrature signals having a known synchronizing sequence transmitted on one of the vectors is correlated to a local replica of the sequence. The output correlation detection signals are held for the duration of the TDMA timeslot and multiplied by the received quadrature signals to produce two pairs of products. The mutually exclusive product pairs are summed to recover data having the random phase error compensated.
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公开(公告)号：ES2073445T3
公开(公告)日：1995-08-16
申请号：ES89312184
申请日：1989-11-23
Applicant: MOTOROLA INC
Inventor： DETTRO GREGORY J , LABEDZ GERALD PAUL , ATKINSON FREDERICK GARLAND
Abstract: In a communications system having transmissions containing certain information-of-interest (147, 149) at predetermined intervals in the transmission, there is provided a method for isolating and processing that information-of-interest. The method is characterized by sensing the start of a transmission (141) and isolating for processing as the information-of-interest, the information received about instant(s) predeterminally removed in time (145) from the sensed start of transmission (141). Thus, the information-of-interest is isolated principally on the basis of elapsed time. The method for isolating and processing that information-of-interest is further characterized by sensing (249) the start of a transmission from the received signal power of the transmission exceeding a predetermined threshold (259); AGCing the transmission (233) and attenuating the AGC'd transmission from a maximum level to a desired level before the information-of-interest is expected to arrive; isolating for processing as the information-of-interest, the information received about instant(s) predeterminally removed in time from the sensed start of transmission, by timing (263) the expected interval between the instant that the start of the transmission is sensed and the predetermined instant that the information-in-interest should arrive (whereby the information-of-interest is isolated principally on the basis of elapsed time); tagging the information (247) isolated about that instant for processing; and beginning processing (275) with information just preceeding the isolated information (whereby the reliability of the information detection is enhanced by one-to-several bits).
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公开(公告)号：NO175695C
公开(公告)日：1994-11-16
申请号：NO885763
申请日：1988-12-27
Applicant: MOTOROLA INC
Inventor： LABEDZ GERALD PAUL
Abstract: A cellular system employing time division messages transmitted from a plurality of radiators (407, 409, 411) in each cell is disclosed. A first electromagnetic signal at a particular frequency is transmitted during one time slot (903) from one of the plurality of radiators. A second electromagnetic signal at the same frequency is transmitted during another time slot (917) from a second one of the plurality of radiators. A remote unit (401,403) selects the best electromagnetic signal and communicates the selection to a cell controller (413), which selects a third time slot for transmission of a message from the radiator transmitting the best electromagnetic signal.
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公开(公告)号：DE3888793T2
公开(公告)日：1994-08-11
申请号：DE3888793
申请日：1988-10-17
Applicant: MOTOROLA INC
Inventor： BORTH DAVID EDWARD , WANG CHIH-FEI , RABE DUANE C , LABEDZ GERALD PAUL
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