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公开(公告)号：HK1011128A1
公开(公告)日：1999-07-02
申请号：HK98110092
申请日：1998-08-21
Applicant: QUALCOMM INC
Inventor： GROB MATTHEW S , PROPACH DAVID S , JACOBS PAUL E , KARMI GADI
IPC: H04M11/00 , H04N20060101 , H04N1/00 , H04N1/32 , H04N1/327 , H04N1/333 , H04N1/41 , H04N1/411 , H04N
Abstract: In a method for minimizing a data bottleneck in a Low Data Rate Network (LDRN) (34), i.e. a facsimile network having a transmission rate less than the data rate of the facsimile machines serviced by the network, the LDRN (34) has a one-dimensional image data format and a two-dimensional image data format. The method comprises processing the facsimile transmissions in order to make the data rates of the LDRN and the FAX machines compatible, thereby minimizing any potential facsimile data bottlenecks that may occur in the LDRN due to its slower data rate. In the method, a first facsimile (FAX) machine (12) is set to the one-dimensional image data format; a data stream encoded in the one-dimensional image data format is sent (32) from the first FAX machine (12) to a first side of the LDRN (34); the data stream sent is uncompressed, and the uncompressed data stream is re-encoded into the two-dimensional image data format; the re-encoded data stream is transmitted from the first side of the LDRN (34) to a second side of the LDRN (34); the transmitted data stream is second uncompressed; the second uncompressed data stream is second re-encoded into the one-dimensional image data format; and the re-encoded data stream is second sent (36) from the second side of the LDRN (34) to a second FAX machine (16).
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152.发明专利
公开(公告)号：AU6382898A
公开(公告)日：1998-07-02
申请号：AU6382898
申请日：1998-05-05
Applicant: QUALCOMM INC
Inventor： PROPACH DAVID S , GROB MATTHEW S , JACOBS PAUL E , KARMI GADI
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153.发明专利
公开(公告)号：AU4497097A
公开(公告)日：1998-04-17
申请号：AU4497097
申请日：1997-09-24
Applicant: QUALCOMM INC
Inventor： DEJACO ANDREW P , JACOBS PAUL E
Abstract: A speech signal is decoded by a vocoder and the reconstructed speech samples are provided to a decoded frame check unit. The decoded frame check unit examines the energy of the reconstructed speech and compares the energy of the reconstructed speech to a range of acceptable energy values. If the energy is not within the range of energy values, a frame erasure is declared and the decoded frame is prevented from being to the speaker in the telephone. In the exemplary implementation, the speech is reconstructed by a vocoder which includes a postfilter which in turn includes automatic gain control. The automatic gain control element of a post filter includes a means for measuring the energy of the decoded speech data. This measured energy is used by the decoded frame check unit to decide whether to provide the decoded data to the user or to declare a frame erasure. This implementation reduces the amount of additional hardware necessary to implement the present invention.
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公开(公告)号：NZ302523A
公开(公告)日：1998-01-26
申请号：NZ30252396
申请日：1996-01-25
Applicant: QUALCOMM INC
Inventor： WEAVER LINDSAY A , LAM S KATHERINE , JACOBS PAUL E , GARDNER WILLIAM R , DEJACO ANDREW P , SIH GILBERT C
IPC: G10L11/02 , G10L19/00 , G10L19/14 , H04B7/26 , H04B14/04 , H04Q11/04 , H04W88/18 , H03M13/00 , G10L5/00 , H04Q7/24
Abstract: When one vocoding system is coupled to another vocoding system, a tandem arrangement results. The tandem configuration results in voice quality degradation as speech is encoded and decoded, then encoded and decoded again. One reason for the degradation is that postfiltering performed at the output of the speech decoding process introduces distortions in the spectral content of the reconstructed speech as compared to the original speech. The present invention prevents the degradation due to the use of postfilters by modifying the postfiltering within the vocoders where a tandem configuration exists. A detection code is embedded within the data signal to indicate the existence of a tandem configuration. If the detection code is received at a vocoder, modified vocoding is established within the vocoders to prevent the degradation due to the postfiltering.
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公开(公告)号：MX9705784A
公开(公告)日：1997-10-31
申请号：MX9705784
申请日：1996-01-31
Applicant: QUALCOMM INC
Inventor： JACOBS PAUL E , FAUS JUAN , CHANG MARTIN N
Abstract: Se describe un sistema de suscriptor concentrado (113) de telefonía celular. El sistema de suscriptor concentrado incluye un conjunto de unidades suscriptoras (116) que tiene una un numero de serie electronico unico, que está acoplado a un controlador del sistema de suscriptor concentrado que proporciona una interfaz de radiofrecuencia RF al transceptor de la estacion base (110) estándar de un sistema telefonico celular. El controlador del sistema de suscriptor concentrado incluye un conjunto de sistema moduladores-desmoduladores (modems) y un transceptor de RF y un sistema de antena (270, 250) que está configurado para transmitir suficiente informacion para conducir multiples llamadas telefonicas tanto sobre distancias largas como cortas. El controlador del sistema de suscriptor concentrado también incluye circutería de control (254) para el acoplamiento del conjunto de unidades suscriptoras (116) con el conjunto de modems mediante un sistema (266) multiplexado que utiliza informacion almacenada. En la modalidad preferida, el numero de modems es significativamente menor que el numero de unidades suscriptoras que están implementadas en una manera simplificada, de modo que se reduce el costo del servicio de telefonía celular por usuario.
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Patent Agency Ranking
公开(公告)号：AU1482597A
公开(公告)日：1997-05-15
申请号：AU1482597
申请日：1997-02-21
Applicant: QUALCOMM INC
Inventor： JACOBS PAUL E , GARDNER WILLIAM R , LEE CHONG U , GILHOUSEN KLEIN S , LAM S KATHERINE , TSAI MING-CHANG
IPC: G10L19/00 , G10L20060101 , G10L11/02 , G10L19/02 , G10L19/04 , G10L19/06 , G10L19/12 , G10L19/14 , G10L21/02 , G10L21/04 , G10L25/93 , H03M7/30 , H03M7/36 , H04B1/66 , H04J3/16 , H04L1/00
Abstract: An apparatus for masking frame errors comprising memory means for storing at least one previous frame of data and for providing said at least one previous frame of data in response to a frame error signal; and masking means for receiving said frame error signal and for generating a masking signal in accordance with at least one previous frame of data and a predetermined error masking format.
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公开(公告)号：AU4775396A
公开(公告)日：1996-08-21
申请号：AU4775396
申请日：1996-01-31
Applicant: QUALCOMM INC
Inventor： JACOBS PAUL E , FAUS JUAN , CHANG MARTIN N
Abstract: A cellular telephone concentrated subscriber system is described. The concentrated subscriber system includes a set of subscriber units coupled to a concentrated subscriber system controller. The concentrated subscriber system controller that provides a radio frequency (RF) interface to the standard base station transceiver of a cellular telephone system. Each subscriber unit has a unique electronic serial number. The concentrated subscriber system controller includes a set of modulator-demodulator systems (modems) and a RF transceiver and antenna system that is configured to transmit sufficient information to conduct multiple telephone calls over both long and short distances. The concentrated subscriber system controller also includes control circuitry for coupling the set of subscriber unit to the set of modems via a multiplexed system using stored information. In the preferred embodiment the number of modems is significantly less the number of subscriber units which are implemented in a simplified manner so that the per user cost of cellular telephone service is reduced.
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公开(公告)号：CA2179759A1
公开(公告)日：1995-06-29
申请号：CA2179759
申请日：1994-12-20
Applicant: QUALCOMM INC
Inventor： JACOBS PAUL E , CHANG CHIENCHUNG
Abstract: A voice recognition system having a feature extraction apparatus (22) is located in a remote station (40). The feature extraction apparatus (22) extracts features from an input speech frame and then provides the extracted features to a central processing station (42). In the central processing station (42), the features are providod to a word decoder (48) which determines the syntax of the input speech frame.
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公开(公告)号：AU1175595A
公开(公告)日：1995-06-06
申请号：AU1175595
申请日：1994-11-08
Applicant: QUALCOMM INC
Inventor： JACOBS PAUL E
Abstract: A data communication system which enables an electronic accessory, such as a computer, to communicate data in both an analog type radiotelephone system and a digital type radiotelephone system. The data communication system first determines in which type of system it is operating and the dual mode radiotelephone (101) then uses the data signal at either the analog input port (104) or the digital input port (105), depending on the type of system.
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公开(公告)号：CA2429744A1
公开(公告)日：1995-05-26
申请号：CA2429744
申请日：1994-11-15
Applicant: QUALCOMM INC
Inventor： KARMI GADI , PROPACH DAVID S , JACOBS PAUL E , GROB MATTHEW S
Abstract: System and method for minimizing data bottlenecks in Low Data Rate Networks (LDRNs) that communicate facsimile transmissions. An LDRN is a facsimile network having a transmission data rate less than the data rate of the FAX machines serviced by the network. The system and method can be implemented in any type of LDRN, including analog and digital wired LDRNs, as well as analog and digital wireless (e. g., cellular) LDRNs. The system and method involve processing the facsimile transmissions in order to make the data rates of the LDRN and the FAX machines compatible, thereby minimizing any potential facsimile data bottlenecks that may occur in the LDRN due to its slower data rate.
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