-
公开(公告)号：DE69021733T2
公开(公告)日：1996-04-11
申请号：DE69021733
申请日：1990-12-11
Applicant: MOTOROLA INC
Inventor： KOTZIN MICHAEL D
Abstract: A method characterized by distributing channel coding on either side of a limited capacity communication path (102) by partially channel coding (400) a signal at a first processing point (100) and communicating the partially coded signal over the communication path (102) to a second processing point (105). The partially coded signal is characterized by at least some but not all of the necessary coded bits. The channel coding algorithm is completed at the second processing point (105) using the communicated partially coded signal (401) thereby increasing throughput over the limited capacity path (102) while minimizing added delays.
-
公开(公告)号：PL311158A1
公开(公告)日：1996-02-05
申请号：PL31115895
申请日：1995-01-09
Applicant: MOTOROLA INC
Inventor： KOTZIN MICHAEL D , STEWART KENNETH A
IPC: G10L19/00 , H04B1/10 , H04B7/26 , H04L12/56 , H04W16/14 , H04W28/22 , H04W36/18 , H04L17/00 , H04Q7/38
Abstract: A code division multiple access (CDMA) communication system reduces interference by reducing the encoding rate for selected mobiles. The system primarily uses link related characteristics such as, inter alia, distance measurements, physical resource power and mobile determined noise, to determine which mobiles require a encoding rate reduction. Once determined, the encoding rate of the determined mobiles is reduced, which in turn reduces self-interference and enhances system capacity.
-
公开(公告)号：PL167432B1
公开(公告)日：1995-09-30
申请号：PL28897691
申请日：1991-02-06
Applicant: MOTOROLA INC
Inventor： KOTZIN MICHAEL D , SPEAR STEPHEN L
Abstract: Method and apparatus for facilitating communication of information in a system without the use of a baseband hopping unit, by sharing a common TDM bus between a plurality of radio communication units, processing units, and information links, where the processing units extract traffic channel information, packetize and/or unpacketize the information, and return same back to the common bus for retrieval by the information links or radio communication units.
-
公开(公告)号：FI954623A0
公开(公告)日：1995-09-29
申请号：FI954623
申请日：1995-09-29
Applicant: MOTOROLA INC
Inventor： KOTZIN MICHAEL D , STEWART KENNETH A
Abstract: A code division multiple access (CDMA) communication system reduces interference by reducing the encoding rate for selected mobiles. The system primarily uses link related characteristics such as, inter alia, distance measurements, physical resource power and mobile determined noise, to determine which mobiles require a encoding rate reduction. Once determined, the encoding rate of the determined mobiles is reduced, which in turn reduces self-interference and enhances system capacity.
-
公开(公告)号：FI954620A0
公开(公告)日：1995-09-28
申请号：FI954620
申请日：1995-09-28
Applicant: MOTOROLA INC
Inventor： KOTZIN MICHAEL D
Abstract: Audio degradation is minimized in scenarios where tandem coding occurs. One such scenario is in the environment of voice mail service. Characteristics of an audio information signal are determined, and the signal is classified as to whether further coding should be performed and, if so, which rate/type of coding should be performed. Characteristics of the audio signal which are determined are, inter alia, quality characteristics, rate of previous coding, type of previous coding and the source of previous coding of the audio information signal. The source of previous coding determined may further include, inter alia, an analog network, a digital network, a PSTN or a wireless communication system. Based on this information, the voice mail service will either choose not to further code the audio information signal or code the audio information signal with the best coding algorithm available.
-
Patent Agency Ranking
公开(公告)号：SE9500668D0
公开(公告)日：1995-02-23
申请号：SE9500668
申请日：1995-02-23
Applicant: MOTOROLA INC
Inventor： MENICH BARRY J , KOTZIN MICHAEL D
Abstract: An AMPS system facilitates reception and processing of a DS CDMA signal transmitted by a mobile station (125). The AMPS system provides an alternate path for the signal to be received by a DS CDMA receiver (506) system. The DS CDMA receiver system generates a signal compatible with the AMPS system, adjusts the generated signal to be proportional to the DS CDMA signal, and inputs the adjusted signal (510) into the AMPS system. The AMPS system then processes the adjusted signal for purposes of handoff of the mobile station (125) from the DS CDMA system to the AMPS system.
-
公开(公告)号：FR2680064B1
公开(公告)日：1994-12-23
申请号：FR9209582
申请日：1992-07-31
Applicant: MOTOROLA INC
Inventor： DENNIS RAY SCHAEFFER , KOTZIN MICHAEL D
Abstract: A communication system having a site employing a plurality of communication channels. Each channel is assigned a desired received signal strength threshold. A channel is assigned to a subscriber unit based upon the strength of the signal received at the site and the power control range of the subscriber unit. The selection of a channel may be performed either by the site or the subscriber unit. In an FDMA environment, each separate frequency division channel may be assigned different received signal strength thresholds. In a non-overlapping time interval (TDMA) environment, each separate time division channel may be assigned different received signal strength thresholds. In another embodiment, a combination of FDMA and TDMA environments can be used.
-
公开(公告)号：CA2123543A1
公开(公告)日：1994-11-15
申请号：CA2123543
申请日：1994-05-13
Applicant: MOTOROLA INC
Inventor： KOTZIN MICHAEL D , GRUBE GARY W
Abstract: METHOD AND APPARATUS FOR MITIGATING SPEECH LOSS IN A COMMUNICATION SYSTEM A communication system mitigates speech loss due to a delay (D) incurred during communication channel set-up and also accounts for the delay (D). The communication system timecompresses certain speech spoken by a user and buffers this timecompressed speech in a FIFO (827) at least until the communication channel set-up has been completed. Upon channel set-up, the communication system begins transmission of the stored time-compressed speech and transitions to transmission of normal spoken speech when the FIFO (827) storing the time-compressed speech is substantially empty.
-
公开(公告)号：CA2117801A1
公开(公告)日：1994-09-15
申请号：CA2117801
申请日：1994-02-18
Applicant: MOTOROLA INC
Inventor： KOTZIN MICHAEL D , SCHULER JOSEPH
Abstract: 2117801 9421049 PCTABS00033 A method and apparatus are provided for digitizing a wide frequency bandwidth signal (105). The digitizing is accomplished by separating the wide frequency bandwidth signal (105) into a plurality of narrow frequency bandwidth signals with a plurality of filters (110). Subsequently, a converter (120) generates digitized samples of the narrow frequency bandwidth signals. Finally, a composite digitized signal (160) is generated by a combiner (150) from the digitized samples which substantially represents the wide frequency bandwidth signal (105).
-
公开(公告)号：CA2097692C
公开(公告)日：1992-06-22
申请号：CA2097692
申请日：1991-12-20
Applicant: MOTOROLA INC
Inventor： KOTZIN MICHAEL D , MEIDAN REUVEN , STILWELL JAMES HOWARD
IPC: H04B1/12 , H04B1/7107 , H04L27/20 , H04L27/22 , H04L27/227 , H04B1/10 , H04B3/23 , H04L27/30 , H04B1/69
Abstract: A spread-spectrum noise canceller is provided for cancelling user code noise from a spread-spectrum communication channel. The spread-spectrum noise canceller includes a receiver for receiving a spread-spectrum signal (114, 202 or 302) including a first (108, 204 or 304) and at least a second (110, 206 or 306) signal as well as a noise canceller operatively coupled to the receiver for reducing spread-spectrum noise in the first received signal (108, 204 or 304) by substantially processing the at least second received signal out of the received spread-spectrum signal (114, 202 or 302). In addition, a method is provided which cancels user code noise from a spread-spectrum communication channel. The method includes receiving a spread-spectrum signal (114, 202 or 302) including a first (108, 204 or 304) and at least a second (110, 206 or 306) signal and subsequently reducing spread-spectrum noise in the first received signal (108, 204 or 304) by substantially processing the at least second received signal 110, 206 or 306) out of the received spread-spectrum signal (114, 202 or 302).
-
-
-
-
-
-
-
-
-
Search Results
284
records
(took 0.024 seconds)
