专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

WO2005078921A8 RADIO FREQUENCY LOW NOISE AMPLIFIER WITH AUTOMATIC GAIN CONTROL 审中-公开
标题翻译：具有自动增益控制的无线电频率低噪声放大器
公开(公告)号：WO2005078921A8
公开(公告)日：2006-08-24
申请号：PCT/US2005002665
申请日：2005-02-02
申请人： SILICON LAB INC , KRONE ANDREW W
发明人： KRONE ANDREW W
IPC分类号： H03D7/14 , H03F1/26 , H03F3/193 , H03F3/45 , H03G1/00 , H03G7/00
CPC分类号： H03G1/0023 , H03F1/26 , H03F3/193 , H03F3/45179 , H03F2200/06 , H03F2200/294 , H03F2200/372 , H03F2203/45024 , H03F2203/45464 , H03F2203/45638 , H03G1/0035 , H03G7/001
摘要： A low noise amplifier (500) includes a first transconductance device (326) having a control electrode for receiving a first input signal, and a first current electrode; a first load device (322) having a first terminal coupled to a first power supply voltage terminal and a second terminal coupled to the first current electrode of the first transconductance device (326) and forming a first output voltage signal; a second transconductance device (336) having a control electrode for receiving a second input signal, and a second current electrode; a second load device (332) having a first terminal coupled to the first power supply voltage terminal and a second terminal coupled to the first current electrode of the second transconductance device (336) and forming a second output voltage signal; and an attenuation device (340) coupled between the first current electrodes of the first (326) and second (336) transconductance devices and having a control input terminal for receiving a control voltage thereon.
摘要翻译：低噪声放大器（500）包括具有用于接收第一输入信号的控制电极的第一跨导器件（326）和第一电流电极; 第一负载装置（322），其具有耦合到第一电源电压端子的第一端子和耦合到第一跨导装置（326）的第一电流电极的第二端子，并形成第一输出电压信号; 具有用于接收第二输入信号的控制电极的第二跨导装置（336）和第二电流电极; 第二负载装置（332），具有耦合到第一电源电压端子的第一端子和耦合到第二跨导装置（336）的第一电流电极的第二端子并形成第二输出电压信号; 以及耦合在第一（326）和第二（336）跨导装置的第一电流电极之间并具有用于在其上接收控制电压的控制输入端的衰减装置（340）。

52. 发明申请

WO2006020427A3 SYSTEM FOR AND METHOD OF AUDIO SIGNAL PROCESSING FOR PRESENTATION IN A HIGH-NOISE ENVIRONMENT 审中-公开
标题翻译：用于在高噪声环境中呈现的音频信号处理系统和方法
公开(公告)号：WO2006020427A3
公开(公告)日：2006-05-04
申请号：PCT/US2005026925
申请日：2005-08-01
申请人： BONGIOVI ANTHONY
发明人： BONGIOVI ANTHONY
IPC分类号： H03G5/00 , H03G7/00
CPC分类号： H03G9/18 , H03G9/005
摘要： The present invention relates to novel systems, methods, and circuits useful for achieving quality sound presentation in high-noise environments. Specifically, the present invention provides systems, methods, and circuits for processing audio signals. The present invention further provides methods for hard-programming adjustments into a multi-band equalizer that compensates for anomalies associated with an anticipated listening environment.
摘要翻译：本发明涉及用于在高噪声环境中实现高质量声音呈现的新型系统，方法和电路。具体地说，本发明提供了用于处理音频信号的系统，方法和电路。本发明还提供了用于对多频带均衡器进行硬编程调整的方法，所述多频带均衡器补偿与预期听音环境相关联的异常。

53. 发明申请

WO2005078921A3 RADIO FREQUENCY LOW NOISE AMPLIFIER WITH AUTOMATIC GAIN CONTROL 审中-公开
标题翻译：具有自动增益控制的射频低噪声放大器
公开(公告)号：WO2005078921A3
公开(公告)日：2006-04-27
申请号：PCT/US2005002665
申请日：2005-02-02
申请人： SILICON LAB INC , KRONE ANDREW W
发明人： KRONE ANDREW W
IPC分类号： H03D7/14 , H03F1/26 , H03F3/193 , H03F3/45 , H03G1/00 , H03G7/00
CPC分类号： H03G1/0023 , H03F1/26 , H03F3/193 , H03F3/45179 , H03F2200/06 , H03F2200/294 , H03F2200/372 , H03F2203/45024 , H03F2203/45464 , H03F2203/45638 , H03G1/0035 , H03G7/001
摘要： A low noise amplifier (500) includes a first transconductance device (326) having a control electrode for receiving a first input signal, and a first current electrode; a first load device (322) having a first terminal coupled to a first power supply voltage terminal and a second terminal coupled to the first current electrode of the first transconductance device (326) and forming a first output voltage signal; a second transconductance device (336) having a control electrode for receiving a second input signal, and a second current electrode; a second load device (332) having a first terminal coupled to the first power supply voltage terminal and a second terminal coupled to the first current electrode of the second transconductance device (336) and forming a second output voltage signal; and an attenuation device (340) coupled between the first current electrodes of the first (326) and second (336) transconductance devices and having a control input terminal for receiving a control voltage thereon.
摘要翻译：低噪声放大器（500）包括具有用于接收第一输入信号的控制电极的第一跨导器件（326），以及第一电流电极; 第一负载装置（322），其具有耦合到第一电源电压端子的第一端子和耦合到所述第一跨导装置（326）的所述第一电流电极的第二端子并且形成第一输出电压信号; 具有用于接收第二输入信号的控制电极的第二跨导器件（336），以及第二电流电极; 第二负载装置（332），其具有耦合到所述第一电源电压端子的第一端子和耦合到所述第二跨导装置（336）的所述第一电流电极并形成第二输出电压信号的第二端子; 以及耦合在第一（326）和第二（336）跨导装置的第一电流电极之间并具有用于在其上接收控制电压的控制输入端的衰减装置（340）。

54. 发明申请

WO2006020427A2 SYSTEM FOR AND METHOD OF AUDIO SIGNAL PROCESSING FOR PRESENTATION IN A HIGH-NOISE ENVIRONMENT 审中-公开
标题翻译：用于在高噪声环境中呈现的音频信号处理的系统和方法
公开(公告)号：WO2006020427A2
公开(公告)日：2006-02-23
申请号：PCT/US2005/026925
申请日：2005-08-01
申请人： BONGIOVI, Anthony
发明人： BONGIOVI, Anthony
IPC分类号： H03G5/00 , H03G7/00
CPC分类号： H03G9/18 , H03G9/005
摘要： The present invention relates to novel systems, methods, and circuits useful for achieving quality sound presentation in high-noise environments. Specifically, the present invention provides systems, methods, and circuits for processing audio signals. The present invention further provides methods for hard-programming adjustments into a multi-band equalizer that compensates for anomalies associated with an anticipated listening environment.
摘要翻译：本发明涉及用于在高噪声环境中实现高质量声音呈现的新型系统，方法和电路。具体而言，本发明提供了用于处理音频信号的系统，方法和电路。本发明进一步提供了用于对多频带均衡器进行硬编程调整的方法，所述多频带均衡器补偿与预期收听环境相关的异常。

55. 发明申请

WO2005074129A3 AUTOMATIC AUDIO SIGNAL DYNAMIC RANGE ADJUSTMENT 审中-公开
公开(公告)号：WO2005074129A3
公开(公告)日：2005-08-11
申请号：PCT/IB2005/050293
申请日：2005-01-25
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , U.S. PHILIPS CORPORATION , JOSEPH, Rani, Mary , SAWICKI, Piotr, Leszek
发明人： JOSEPH, Rani, Mary , SAWICKI, Piotr, Leszek
IPC分类号： H03G7/00
摘要： A sound source receives an input audio signal and a sense signal depending on an external condition. The sound source has dynamic range controller that automatically adjusts the dynamic range of the input audio signal to provide the output audio signal, the adjusting depending on the sense signal. Then the sound source converts the output audio signal to ambient sound waves.

56. 发明申请

WO2004098053A2 VOLUME AND COMPRESSION CONTROL IN MOVIE THEATERS 审中-公开
标题翻译：电影剧院的音量和压缩控制
公开(公告)号：WO2004098053A2
公开(公告)日：2004-11-11
申请号：PCT/US2004012629
申请日：2004-04-22
申请人： DOLBY LAB LICENSING CORP , GUNDRY KENNETH JAMES , ILES JOHN , DRESSLER ROGER WALLACE
发明人： GUNDRY KENNETH JAMES , ILES JOHN , DRESSLER ROGER WALLACE
IPC分类号： H03G7/00 , H03G9/10 , H03G9/00
CPC分类号： H03G9/005 , H03G7/004 , H03G9/10
摘要： A single control determines both volume and the degree of compression in the reproduction of motion picture soundtracks. For some settings of the control, compression or limiting reduces the highest levels on a movie soundtrack, leaving the dialogue level substantially unchanged, thus removing the reason for complaints from the audience without the danger of making the dialogue too quiet for intelligibility.
摘要翻译：单个控制器确定在重放电影配乐中的音量和压缩程度。对于控制的一些设置，压缩或限制降低了电影配乐的最高级别，使对话级别基本保持不变，从而消除了观众投诉的原因，而不会使对话过于安静的可理解性。

57. 发明申请

WO02069613A3 METHOD AND SYSTEM FOR ADJUSTING THE DYNAMIC RANGE OF A DIGITAL-TO-ANALOG CONVERTER IN A WIRELESS COMMUNICATIONS DEVICE 审中-公开
标题翻译：用于调整无线通信设备中的数字到模拟转换器的动态范围的方法和系统
公开(公告)号：WO02069613A3
公开(公告)日：2003-05-22
申请号：PCT/US0205328
申请日：2002-02-22
申请人： QUALCOMM INC
发明人： OLIVEIRA LOUIS D , GUPTA SAMIR KUMAR , BAZARJANI SEYFOLLAH , SU WENJUN
IPC分类号： H03G7/00 , H03M1/70 , H04M1/73 , H04M1/60
CPC分类号： H03G7/007 , H03M1/70
摘要： A wireless communication device (100) may include a receiver (110), a memory (104), a digital-to-analog converter (128) an audio playback system (124) and other features. A dynamic range controller (130) selectively generates control signals to adjust, at least in part, the operational dynamic range of the digital to analog converter (128) for digital signals received by the receiver (110) or stored in the memory (104). The selection of dynamic range is based on identifying a characteristic. In one embodiment, the control signals are used to selectively operate the digital-to analog converter (128) at a particular dynamic range based on a sampling rate of a received digital audio signal.
摘要翻译：无线通信设备（100）可以包括接收机（110），存储器（104），数模转换器（128）音频回放系统（124）和其他特征。动态范围控制器（130）选择性地产生控制信号，以至少部分地调整用于由接收器（110）接收或存储在存储器（104）中的数字信号的数模转换器（128）的操作动态范围，。动态范围的选择基于识别特征。在一个实施例中，控制信号用于基于所接收的数字音频信号的采样率在特定动态范围内有选择地操作数模转换器（128）。

58. 发明申请

WO02060053A3 METHODS, DEVICES AND COMPUTER PROGRAM PRODUCTS FOR COMPRESSING AN AUDIO SIGNAL 审中-公开
标题翻译：用于压缩音频信号的方法，设备和计算机程序产品
公开(公告)号：WO02060053A3
公开(公告)日：2003-05-15
申请号：PCT/US0149166
申请日：2001-12-19
申请人： ERICSSON TELEFON AB L M , ROMESBURG ERIC DOUGLAS
发明人： ROMESBURG ERIC DOUGLAS
IPC分类号： H03G7/00
CPC分类号： H03G7/007
摘要： A method of compressing an audio signal can include accepting input samples of the audio signal wherein the input samples include non-zero input samples. A logarithm of each of the non-zero input samples of the audio signal can be calculated. Compressed output samples for each non-zero input sample can then be determined based on the logarithm of each respective non-zero input sample. Preferably, a linear relationship may exist between logarithms of the non-zero input samples and logarithms of the corresponding compressed output samples. A logarithm of each compressed output sample, corresponding to a non-zero input sample, may be based on a product of a logarithm of each corresponding non-zero input sample and a compression factor. Related devices and computer program products are also discussed.
摘要翻译：压缩音频信号的方法可以包括接受音频信号的输入样本，其中输入样本包括非零输入样本。可以计算音频信号的每个非零输入样本的对数。然后可以基于每个相应的非零输入样本的对数来确定每个非零输入样本的压缩输出样本。优选地，在非零输入样本的对数和对应的压缩输出样本的对数之间可以存在线性关系。对应于非零输入样本的每个压缩输出样本的对数可以基于每个对应的非零输入样本的对数与压缩因子的乘积。还讨论了相关设备和计算机程序产品。

59. 发明申请

WO2002097977A3 ENHANCING THE INTELLIGIBILITY OF RECEIVED SPEECH IN A NOISY ENVIRONMENT 审中-公开
公开(公告)号：WO2002097977A3
公开(公告)日：2002-12-05
申请号：PCT/US2002/015776
申请日：2002-05-17
申请人： INTEL CORPORATION
发明人： ERELL, Adoram
IPC分类号： H03G7/00
摘要： A device receives a signal that includes human-interpretable audio information. The device automatically adjusts the volume of the audio information at the received end. The volume control is determined by an automatic volume control gain, which is calculated as a function of the automatic gain control gain, a weighted dynamic range compression gain, and a weighted constant gain.

60. 发明申请

WO02056516A1 COMMUNICATION DEVICE AND COMMUNICATION SYSTEM USING IT 审中-公开
标题翻译：使用它的通信设备和通信系统
公开(公告)号：WO02056516A1
公开(公告)日：2002-07-18
申请号：PCT/JP2001/000065
申请日：2001-01-10
IPC分类号： H03G7/00 , H04L27/26 , H04J11/00 , H04J1/00
CPC分类号： H03G7/007 , H04L27/2626
摘要： A communication device comprises a compressor for receiving a modulation signal, obtained by combining a plurality of carriers modulated with transmitted data, and amplifying the modulation signal with a first amplification factor for a signal lower than a preset threshold level and a second amplification factor for a signal exceeding a threshold level lower than that for the first amplification factor. Since a signal exceeding the threshold level is compressed more than a signal lower than the threshold level by setting the amplification factor for the signal exceeding the threshold level to a value lower than the amplification factor for the signal lower than the threshold level, the peak power of the modulation signal is lowered. Furthermore, the peak ratio is reduced because lowering of the average power is limited as compared with lowering of the peak power.
摘要翻译：一种通信设备包括：压缩器，用于接收通过组合由发送数据调制的多个载波获得的调制信号，并且以对于低于预设阈值电平的信号的第一放大系数放大调制信号，以及用于第信号超过阈值水平低于第一放大因子。由于超过阈值电平的信号通过将超过阈值电平的信号的放大系数设置为低于低于阈值电平的信号的放大系数的值来压缩比低于阈值电平的信号，所以峰值功率的调制信号降低。此外，与降低峰值功率相比，平均功率的降低受到限制，因此降低了峰值比。

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