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公开(公告)号：AU744770B2
公开(公告)日：2002-03-07
申请号：AU1725499
申请日：1998-12-14
Applicant: QUALCOMM INC
Inventor： HEIMBIGNER WADE L , IV JAMES A HUTCHISON , OLIVEIRA LOUIS D
Abstract: An audio band processor and a method and circuit for controlling its gain. The audio band processor comprises a first variable gain amplifier for receiving an analog audio signal; an analog to digital converter for converting the analog audio signal to a digital audio signal; and an interface circuit for encoding the digital audio signal. The interface circuit also arranges the digital audio signal into a sequence of encoded transmit frames, and receives a sequence of encoded receive frames, each receive frame comprising a predetermined number of encoded digital audio signal data bits and a predetermined number of digital gain control bits. The interface circuit also adjusts a gain level of the first variable gain amplifier in response to the digital gain control bits. In another embodiment, the audio band processor further comprises a second variable gain amplifier, and the interface circuit adjusts a gain level of the second variable gain amplifier in response to the digital gain control bits.
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公开(公告)号：AU1725499A
公开(公告)日：1999-06-28
申请号：AU1725499
申请日：1998-12-14
Applicant: QUALCOMM INC
Inventor： HEIMBIGNER WADE L , HUTCHISON JAMES A , OLIVEIRA LOUIS D
Abstract: An audio band processor and a method and circuit for controlling its gain. The audio band processor comprises a first variable gain amplifier for receiving an analog audio signal; an analog to digital converter for converting the analog audio signal to a digital audio signal; and an interface circuit for encoding the digital audio signal. The interface circuit also arranges the digital audio signal into a sequence of encoded transmit frames, and receives a sequence of encoded receive frames, each receive frame comprising a predetermined number of encoded digital audio signal data bits and a predetermined number of digital gain control bits. The interface circuit also adjusts a gain level of the first variable gain amplifier in response to the digital gain control bits. In another embodiment, the audio band processor further comprises a second variable gain amplifier, and the interface circuit adjusts a gain level of the second variable gain amplifier in response to the digital gain control bits.
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公开(公告)号：BR9813482A
公开(公告)日：2000-11-14
申请号：BR9813482
申请日：1998-12-14
Applicant: QUALCOMM INC
Inventor： HEIMBIGNER WADE L , IV JAMES A HUTCHISON , OLIVEIRA LOUIS D
Abstract: An audio band processor and a method and circuit for controlling its gain. The audio band processor comprises a first variable gain amplifier for receiving an analog audio signal; an analog to digital converter for converting the analog audio signal to a digital audio signal; and an interface circuit for encoding the digital audio signal. The interface circuit also arranges the digital audio signal into a sequence of encoded transmit frames, and receives a sequence of encoded receive frames, each receive frame comprising a predetermined number of encoded digital audio signal data bits and a predetermined number of digital gain control bits. The interface circuit also adjusts a gain level of the first variable gain amplifier in response to the digital gain control bits. In another embodiment, the audio band processor further comprises a second variable gain amplifier, and the interface circuit adjusts a gain level of the second variable gain amplifier in response to the digital gain control bits.
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公开(公告)号：CA2313219C
公开(公告)日：2007-05-29
申请号：CA2313219
申请日：1998-12-14
Applicant: QUALCOMM INC
Inventor： HEIMBIGNER WADE L , HUTCHISON JAMES A , OLIVEIRA LOUIS D
Abstract: An audio band processor and a method and circuit for controlling its gain. T he audio band processor comprises a first variable gain amplifier (202) for receiving an analog audio signal; an analog to digital converter (204) for converting said analog audio signal to a digital audio signal; and an interface circuit (206) for encoding said digital audio signal. The interface circuit (206) also arranges said digital audio signal into a sequence of encoded transmit frames, and receives a sequence o f encoded receive frames, each receive frame comprising a predetermined number of encoded digital audio signal data bits and a predetermined number of digital gain control bits. The interface circuit (206) also adjusts a gain level of said first variable gain amplifier in response to said digital gain control bits. In another embodiment, the audio band processor further comprises a second variable gain amplifier (202 ), and the interface circuit adjusts a gain level of said second variable gain amplifier in response to said digital gain control bits.
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公开(公告)号：ES2230736T3
公开(公告)日：2005-05-01
申请号：ES98962093
申请日：1998-12-14
Applicant: QUALCOMM INC
Inventor： HEIMBIGNER WADE L , HUTCHISON JAMES A IV , OLIVEIRA LOUIS D
Abstract: Procesador de banda de audio (106), que comprende: un primer amplificador de ganancia variable (202, 302) para recibir una señal de audio analógica; un convertidor analógico-digital (306) para convertir dicha señal de audio analógica en una señal de audio digital, y un circuito de interfaz (310) para codificar dicha señal de audio digital y para disponer dicha señal de audio digital en una secuencia de tramas de transmisión codificadas, y para recibir una secuencia de tramas de recepción codificadas, comprendiendo cada trama de recepción un número predeterminado de bits de datos de la señal de audio digital codificada y un número predeterminado de bits de control de ganancia digital, estando destinado además dicho circuito de interfaz (310) a ajustar el nivel de ganancia de dicho primer amplificador de ganancia variable (202 y 302) en respuesta a dichos bits de control de ganancia digital.
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Patent Agency Ranking
公开(公告)号：HK1036166A1
公开(公告)日：2001-12-21
申请号：HK01106997
申请日：2001-10-05
Applicant: QUALCOMM INC
Inventor： HEIMBIGNER WADE L , IV JAMES A HUTCHISON , OLIVEIRA LOUIS D
Abstract: An audio band processor and a method and circuit for controlling its gain. The audio band processor comprises a first variable gain amplifier for receiving an analog audio signal; an analog to digital converter for converting the analog audio signal to a digital audio signal; and an interface circuit for encoding the digital audio signal. The interface circuit also arranges the digital audio signal into a sequence of encoded transmit frames, and receives a sequence of encoded receive frames, each receive frame comprising a predetermined number of encoded digital audio signal data bits and a predetermined number of digital gain control bits. The interface circuit also adjusts a gain level of the first variable gain amplifier in response to the digital gain control bits. In another embodiment, the audio band processor further comprises a second variable gain amplifier, and the interface circuit adjusts a gain level of the second variable gain amplifier in response to the digital gain control bits.
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公开(公告)号：ZA9811353B
公开(公告)日：2000-10-11
申请号：ZA9811353
申请日：1998-12-10
Applicant: QUALCOMM INC
Inventor： HEIMBIGNER WADE L , OLIVEIRA LOUIS D , IV JAMES A HUTCHISON
Abstract: An audio band processor and a method and circuit for controlling its gain. The audio band processor comprises a first variable gain amplifier for receiving an analog audio signal; an analog to digital converter for converting the analog audio signal to a digital audio signal; and an interface circuit for encoding the digital audio signal. The interface circuit also arranges the digital audio signal into a sequence of encoded transmit frames, and receives a sequence of encoded receive frames, each receive frame comprising a predetermined number of encoded digital audio signal data bits and a predetermined number of digital gain control bits. The interface circuit also adjusts a gain level of the first variable gain amplifier in response to the digital gain control bits. In another embodiment, the audio band processor further comprises a second variable gain amplifier, and the interface circuit adjusts a gain level of the second variable gain amplifier in response to the digital gain control bits.
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公开(公告)号：CA2313219A1
公开(公告)日：1999-06-17
申请号：CA2313219
申请日：1998-12-14
Applicant: QUALCOMM INC
Inventor： HUTCHISON JAMES A , OLIVEIRA LOUIS D , HEIMBIGNER WADE L
Abstract: An audio band processor and a method and circuit for controlling its gain. The audio band processor comprises a first variable gain amplifier (202) for receiving an analog audio signal; an analog to digital converter (204) for converting said analog audio signal to a digital audio signal; and an interface circuit (206) for encoding said digital audio signal. The interface circuit (206) also arranges said digital audio signal into a sequence of encoded transmit frames, and receives a sequence of encoded receive frames, each receive frame comprising a predetermined number of encoded digital audio signal data bits and a predetermined number of digital gain control bits. The interface circuit (206) also adjusts a gain level of said first variable gain amplifier in response to said digital gain control bits. In another embodiment, the audio band processor further comprises a second variable gain amplifier (202), and the interface circuit adjusts a gain level of said second variable gain amplifier in response to said digital gain control bits.
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公开(公告)号：WO2014088757A2
公开(公告)日：2014-06-12
申请号：PCT/US2013069119
申请日：2013-11-08
Applicant: QUALCOMM INC
Inventor： PARK HYUN JIN , HEIMBIGNER WADE L , FITZGERALD JOSEPH R , CHERRY MARK A , RICKMAN TERRY LEE
CPC classification number: H04R1/02 , G06F1/1684 , H04M1/026 , H04M1/035 , H04R1/2884 , H04R1/406 , H04R3/005 , H04R2499/11
Abstract: A microphone port design for a handheld device is disclosed. The microphone port design includes an elongated channel disposed in a first surface of the handheld device. A microphone port is located within the channel to reduce unwanted noise caused by air pressure build up around the microphone port opening due to coverage of the opening by a user's finger.
Abstract translation: 公开了一种用于手持设备的麦克风端口设计。 麦克风端口设计包括设置在手持设备的第一表面中的细长通道。 麦克风端口位于通道内，以减少由于使用者的手指覆盖开口所引起的由麦克风端口开口周围的空气压力所引起的不必要的噪音。
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公开(公告)号：WO2011017124A3
公开(公告)日：2011-05-05
申请号：PCT/US2010043435
申请日：2010-07-27
Applicant: QUALCOMM INC , XIANG PEI , HEIMBIGNER WADE L
Inventor： XIANG PEI , HEIMBIGNER WADE L
IPC: H04S5/00
CPC classification number: H04S5/00 , H04R2499/11 , H04S1/002 , H04S1/007
Abstract: Mid-side (M-S) encoded audio is reproduced by a device that includes a multi-channel digital-to-analog converter (DAC). The DAC has a first channel input receiving a digitized mid audio signal, a first channel output providing an analog mid audio signal, a second channel input receiving a digitized side audio signal and a second channel output providing an analog side audio signal. The DAC may also include a third channel for receiving a digitized second side audio signal. The second side audio signal is phase inverted. The device may be a handheld wireless communication device, such as a cellular phone, and may also include transducers for outputting M-S encoded sound in response to the analog mid and side audio signals.
Abstract translation: 中间（M-S）编码音频由包含多通道数模转换器（DAC）的设备重现。 DAC具有接收数字化中间音频信号的第一声道输入，提供模拟中间音频信号的第一声道输出，接收数字化侧音频信号的第二声道输入和提供模拟侧音频信号的第二声道输出。 DAC还可以包括用于接收数字化的第二侧音频信号的第三通道。 第二侧音频信号被倒相。 该设备可以是手持无线通信设备，诸如蜂窝电话，并且还可以包括用于响应于模拟中间和侧面音频信号而输出M-S编码声音的换能器。
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