专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

EP2664196B1 BATTERY POWER MONITORING AND AUDIO SIGNAL ATTENUATION 有权
公开(公告)号：EP2664196B1
公开(公告)日：2019-05-01
申请号：EP12701790.3
申请日：2012-01-09
申请人： Qualcomm Incorporated
发明人： SILVERSTEIN, Roy B. , RAMAKRISHNAN, Dinesh
IPC分类号： H04W52/02 , G06F1/32 , H04M1/60 , H03G3/00

12. 发明授权

EP2622722B1 VOLTAGE REGULATOR, ENVELOPE TRACKING POWER SUPPLY SYSTEM, TRANSMITTER MODULE, AND INTEGRATED CIRCUIT DEVICE THEREFOR 有权
公开(公告)号：EP2622722B1
公开(公告)日：2019-04-17
申请号：EP11829726.6
申请日：2011-07-19
申请人： MediaTek Singapore Pte. Ltd.
发明人： RIEHL, Patrick Stanley
IPC分类号： H02M3/137 , H02M3/156 , G05F1/62 , H02M3/158 , H03G3/20 , H03G3/00

13. 发明公开

EP3417544A1 POST-PROCESSOR, PRE-PROCESSOR, AUDIO ENCODER, AUDIO DECODER AND RELATED METHODS FOR ENHANCING TRANSIENT PROCESSING 有权
公开(公告)号：EP3417544A1
公开(公告)日：2018-12-26
申请号：EP17703771.0
申请日：2017-02-10
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： GHIDO, Florin , DISCH, Sascha , HERRE, Jürgen , ADAMI, Alexander , REUTELHUBER, Franz
IPC分类号： H03G3/00 , H03G5/16
CPC分类号： G10L19/032 , G10L19/008 , G10L19/26 , H03G5/005 , H03G5/165
摘要： An audio post-processor for post-processing an audio signal having a time-variable high frequency gain information as side information includes: a band extractor for extracting a high frequency band of the audio signal and a low frequency band of the audio signal; a high band processor for performing a time-variable modification of the high frequency band in accordance with the time-variable high frequency gain information to obtain a processed high frequency band; and a combiner for combining the processed high frequency band and the low frequency band. Furthermore, a pre-processor is illustrated.

14. 发明公开

EP3408936A2 MULTI-CHANNEL AMPLIFIER WITH CONTINUOUS CLASS-D MODULATOR AND EMBEDDED PLD AND RESONANT FREQUENCY DETECTOR 审中-实审
公开(公告)号：EP3408936A2
公开(公告)日：2018-12-05
申请号：EP17703640.7
申请日：2017-01-27
申请人： Dolby Laboratories Licensing Corporation
发明人： VOGEL, Erich H , BUTLER, JOEL A. , REVELLI, Luca
IPC分类号： H03F3/217 , H04S7/00 , H04R5/00 , H04R29/00 , H03G3/30 , H03G3/00 , H03F3/68 , H04R5/04 , H02M1/32 , H02M1/42 , H05B37/02 , H02M1/00 , H03F3/181
CPC分类号： H04R5/04 , H02M1/32 , H02M1/4225 , H02M1/4241 , H02M2001/007 , H02M2001/325 , H03F1/301 , H03F3/183 , H03F3/2173 , H03F3/45475 , H03F3/68 , H03F2200/03 , H03F2200/447 , H03F2200/468 , H03F2203/45512 , H03F2203/45522 , H03F2203/45528 , H03G3/007 , H03G3/3005 , H03G2201/208 , H03G2201/708 , H04R29/007 , H04R2420/05 , H04R2430/01 , H04S7/308 , H05B37/029
摘要： An integrated cinema amplifier a power supply stage that distributes power over a plurality of channels for rendering immersive audio content in a surround sound listening environment. The amplifier automatically detects maximum and net power availability and requirements based on audio content by decoding audio metadata and dynamically adjusts gains to each channel or sets of channels based on content and operational/environmental conditions. A power supply stage provides power to drive a plurality of channels corresponding to speaker feeds to a plurality of speakers. The amplifier has a front panel having an LED array with each LED associated with a respective channel or group of channels of the multi-channel amplifier, and a control unit configured to light the LEDs according to display patterns based on operating status or error conditions of the amplifier.

15. 发明公开

EP3378157A1 PREVENTION OF SIGNAL CLIPPING DUE TO DECREASE IN AMPLIFIER SUPPLY VOLTAGE 有权转让
公开(公告)号：EP3378157A1
公开(公告)日：2018-09-26
申请号：EP16798366.7
申请日：2016-11-10
申请人： Cirrus Logic International Semiconductor Ltd.
发明人： MAY, Jeffrey Allen , AZRAI, Firas
IPC分类号： H03G3/00 , H03G3/30 , H03G7/00
摘要： A method may include receiving information indicative of an amplitude of an audio output signal, receiving information indicative of a predicted voltage of a power supply of a signal path having an audio input for receiving an audio input signal and an audio output for generating the audio output signal based on the audio input signal, predicting from the information indicative of the amplitude of the audio output signal and the information indicative of the predicted voltage of the power supply whether the audio output signal will exceed an available supply voltage generated by the power supply, and responsive to determining the audio output signal will exceed the available supply voltage generated by the power supply, attenuating the audio input signal or a derivative thereof to reduce the amplitude of the audio output signal such that the audio output signal does not exceed the available supply voltage of the power supply.

16. 发明公开

EP3349356A1 ELECTRONIC DEVICE AND CONTROL PROGRAM OF ELECTRONIC DEVICE 审中-公开
公开(公告)号：EP3349356A1
公开(公告)日：2018-07-18
申请号：EP17208825.4
申请日：2017-12-20
申请人： Onkyo Corporation
发明人： KONDO, Yusuke
IPC分类号： H03G3/00 , H03G3/30 , H04M1/60 , H04M9/08
CPC分类号： H03G3/3005 , H04M1/6016 , H04M9/082 , H04R1/1041
摘要： Problem: To be able to observe regulation in audio output by telephone function.
Solution: A mobile phone 1 includes a DAC 7 that has volume adjustment function and converts digital audio data into analog audio data and an SoC 2. The SoC 2 performs volume control for sound pressure regulation by the DAC 7 except during call. Further, the SoC 2 releases volume control for sound pressure regulation by the DAC 7 and performs control for regulation in audio output by telephone function during call.

17. 发明公开

EP3324539A1 WIDE BANDWIDTH VARIABLE GAIN AMPLIFIER AND EXPONENTIAL FUNCTION GENERATOR 审中-公开
公开(公告)号：EP3324539A1
公开(公告)日：2018-05-23
申请号：EP17200576.1
申请日：2017-11-08
申请人： MediaTek Inc.
发明人： TSAI, Hung-Chieh
IPC分类号： H03F3/45 , H03F3/193 , H03F1/42 , H03G1/00 , H03G3/00
CPC分类号： H03G9/005 , H03F1/42 , H03F3/193 , H03F3/45 , H03F3/45183 , H03F3/45219 , H03F3/45632 , H03F2200/18 , H03F2200/303 , H03F2200/451 , H03F2200/456 , H03F2203/45208 , H03G1/0023 , H03G1/0029 , H03G1/0088 , H03G3/001
摘要： A variable gain amplifier includes an input transistor, an auxiliary transistor, an active inductor and an input current replica circuit. The input transistor is arranged for receiving an input signal to generate an output signal at an output terminal. The auxiliary transistor is coupled to the output terminal of the input transistor, wherein a current of the output terminal flows into the input transistor and the auxiliary transistor. The active inductor is coupled to the output terminal of the input transistor. The input current replica circuit is coupled to the output terminal of the input transistor, wherein a current flowing through a portion of the input current replica circuit is equal to the current flowing through the input transistor, and both a current of the active inductor and the current of the portion of the input current replica circuit flow into the output terminal of the input transistor.

18. 发明授权

EP3105851B1 CURRENT-EFFICIENT LOW NOISE AMPLIFIER (LNA) 有权
标题翻译：电流有效的低噪声放大器（低噪声放大器）
公开(公告)号：EP3105851B1
公开(公告)日：2018-04-25
申请号：EP15706999.8
申请日：2015-02-12
申请人： Qualcomm Incorporated
发明人： HASSAN, Muhammad , TANG, Yiwu , VAN ZALINGE, Klaas , WANG, Chuan , PAN, Dongling
IPC分类号： H03F3/189 , H03F3/191 , H03F1/02 , H03F3/193 , H03G3/00 , H04B1/40 , H04W52/02 , H04W88/06
CPC分类号： H04W52/0261 , H03F1/0205 , H03F3/189 , H03F3/191 , H03F3/193 , H03F2200/294 , H03F2200/451 , H03G3/00 , H04B1/40 , H04W88/06 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164
摘要： A device includes a multi-mode low noise amplifier (LNA) having a first amplifier stage, and a second amplifier stage coupled to the first amplifier stage, the second amplifier stage having a plurality of amplification paths configured to amplify a plurality of carrier frequencies, the first amplifier stage configured to bypass the second amplifier stage when the first amplifier stage is configured to amplify a single carrier frequency.

19. 发明授权

EP2552017B1 A method of diminishing the minimum range of operation of a communication link 有权
标题翻译：一种减少通信链路的最小操作范围的方法
公开(公告)号：EP2552017B1
公开(公告)日：2018-03-07
申请号：EP11175282.0
申请日：2011-07-26
申请人： Oticon A/S
发明人： Bendsen, Henrik
IPC分类号： H03F1/56 , H03G3/30 , H03G3/00 , H03F3/189
CPC分类号： H03F1/565 , H03F1/56 , H03F3/189 , H03F2200/222 , H03F2200/249 , H03F2200/252 , H03F2200/294 , H03F2200/451 , H03G3/001 , H03G3/3052
摘要： The application relates to a portable electronic device comprising a wireless receiver unit for receiving a wireless signal from a transmitting device, the wireless receiver unit comprising an antenna for receiving an electromagnetic signal and providing a received electric input signal, and a receiver for providing a recovered electric signal from the received electric input signal, and an impedance matching circuit for matching the electric impedance of the antenna to the receiver, the receiver comprising a gain stage comprising an Automatic Gain Control unit for automatically determining an AGC-gain value for application to an AGC-input signal to provide an appropriate signal level of the recovered electric signal when the level of said AGC input signal is in a range between a minimum signal level and a maximum signal level corresponding to maximum and minimum AGC-gain values, respectively. The application further relates to a method of operating a wireless receiver unit, to the use of a portable electronic device and to a communication system. The object of the present application is to provide a scheme for improving flexibility in the acceptable range of operation of a wireless link. The problem is solved in that the portable electronic device further comprises a control unit receiving said AGC-gain value and providing a control signal depending on said AGC-gain value to said impedance matching circuit, and wherein the control unit is adapted to change the impedance matching of the antenna to the receiver based on the control signal. This has the advantage of enhancing the dynamic range of the wireless receiver, e.g. allowing a smaller minimum distance between transmitter and receiver. The invention may e.g. be used for the portable electronic devices capable of establishing a wireless communication link to other devices, e.g. listening devices, such as hearing aids.

20. 发明授权

EP2228902B1 An apparatus for processing an audio signal and method thereof 有权
公开(公告)号：EP2228902B1
公开(公告)日：2017-09-27
申请号：EP10002390.2
申请日：2010-03-08
申请人： LG Electronics Inc.
发明人： Oh, Hyen-O , Favrot, Alex , Faller, Christof , Lee, Myung Hoon , Moon, Jong Ha
IPC分类号： H03G9/00 , H03G7/00 , H03G5/16 , H03G1/02 , G10L21/0208 , G10K11/178 , H03G3/00 , H03G9/02
CPC分类号： G10K11/1784 , G10K11/178 , G10L21/0208 , H03G1/02 , H03G3/001 , H03G5/165 , H03G7/002 , H03G9/005 , H03G9/025
摘要： A method of processing an audio signal is disclosed. The present invention includes receiving, by an audio processing apparatus, an input signal; estimating indicator function using a signal power of the input signal; obtaining an adapted filter using the indicator function and an equalization filter; and, generating an output signal by applying the adapted filter to the input signal.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式