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1. 发明申请

US20170346520A1 Multi-Standard, Multi-Channel Expandable TV/Satellite Receiver 审中-公开
公开(公告)号：US20170346520A1
公开(公告)日：2017-11-30
申请号：US15168318
申请日：2016-05-31
申请人： Vitor Pereira , Mustafa Koroglu , Ruifeng Sun , Ramin Khoini-Poorfard , Abdulkerim Coban , Yu Su , Krishna Pentakota
发明人： Vitor Pereira , Mustafa Koroglu , Ruifeng Sun , Ramin Khoini-Poorfard , Abdulkerim Coban , Yu Su , Krishna Pentakota
IPC分类号： H04B1/30 , H04B1/10 , H04B1/00
CPC分类号： H04B1/30 , H04B1/0028 , H04B1/005 , H04B1/1027 , H04N21/4263
摘要： In one example, a semiconductor die includes multi-standard, multi-channel expandable television/satellite receiver that can be flexibly implemented in a number of different configurations to enable incorporation into a plurality of different systems. The semiconductor die may include multiple tuners to receive and tune a terrestrial radio frequency (RF) signal and a satellite RF signal. These tuners may include different frequency synthesizers including voltage controlled oscillators (VCOs) to generate VCO signals at different frequencies, mixers to downconvert the RF signals to baseband signals using the VCO signals. In an implementation, the semiconductor die may further include shared circuitry coupled to the tuners to digitize, process and demodulate the baseband signals.

2. 发明授权

US07164377B2 Multiplexed voltage reference strategy for codec 失效
标题翻译：多路复用电压参考策略
公开(公告)号：US07164377B2
公开(公告)日：2007-01-16
申请号：US11291733
申请日：2005-12-01
申请人： Vitor Pereira , Paulo Pereira
发明人： Vitor Pereira , Paulo Pereira
IPC分类号： H03M1/66
CPC分类号： H03M1/002
摘要： A shared voltage reference circuit for a codec is shown that includes a voltage reference circuit for producing a reference voltage. A first sample and hold circuit has a first capacitor coupled to an output of the voltage reference circuit through a first switch controlled by a first phase of a sample clock signal for the codec. A second sample and hold circuit has a second capacitor coupled to the output of the voltage reference circuit through a second switch controlled by a second phase of the sample clock signal. A clock generator circuit generates the first and second phases of the sample clock signal, where the first and second phases are non-overlapping.
摘要翻译：示出了用于编解码器的共享参考电压，其包括用于产生参考电压的电压参考电路。第一采样和保持电路具有通过由编解码器的采样时钟信号的第一相位控制的第一开关耦合到电压参考电路的输出的第一电容器。第二采样和保持电路具有通过由采样时钟信号的第二相位控制的第二开关耦合到电压参考电路的输出的第二电容器。时钟发生器电路产生采样时钟信号的第一和第二相，其中第一和第二相不重叠。

3. 发明授权

US07502214B2 Flexible hook switch driver circuit 失效
标题翻译：灵活的钩开关驱动电路
公开(公告)号：US07502214B2
公开(公告)日：2009-03-10
申请号：US11291732
申请日：2005-12-01
申请人： Wayne T. Holcombe , Vitor Pereira
发明人： Wayne T. Holcombe , Vitor Pereira
IPC分类号： H01H47/00
CPC分类号： H04M1/738
摘要： Disclosed is a switch driver circuit is shown where the circuit can control current driven devices and drive devices across a capacitive barrier. A mode control signal determines whether the circuit is in a current mode or a capacitive mode. In current mode, the circuit provides a current output signal at an output of the circuit in response to a subject signal, such as an ON switch control signal for a hook switch application. In capacitive mode, the circuit provides a clocked output signal at the output of the circuit in response to the subject signal, such that the clocked output signal can pass across a capacitive isolation barrier.
摘要翻译：公开了一种开关驱动器电路，其中电路可以控制跨过电容屏障的电流驱动器件和驱动器件。模式控制信号确定电路是处于电流模式还是电容模式。在电流模式下，电路响应于诸如用于挂钩开关应用的ON开关控制信号的被摄体信号，在电路的输出处提供电流输出信号。在电容模式下，电路响应于被摄体信号在电路的输出处提供时钟输出信号，使得时钟输出信号可以穿过电容隔离屏障。

4. 发明申请

US20060119501A1 Multiplexed voltage reference strategy for codec 失效
标题翻译：多路复用电压参考策略
公开(公告)号：US20060119501A1
公开(公告)日：2006-06-08
申请号：US11291733
申请日：2005-12-01
申请人： Vitor Pereira , Paulo Pereira
发明人： Vitor Pereira , Paulo Pereira
IPC分类号： H03M1/12
CPC分类号： H03M1/002
摘要： A shared voltage reference circuit for a codec is shown that includes a voltage reference circuit for producing a reference voltage. A first sample and hold circuit has a first capacitor coupled to an output of the voltage reference circuit through a first switch controlled by a first phase of a sample clock signal for the codec. A second sample and hold circuit has a second capacitor coupled to the output of the voltage reference circuit through a second switch controlled by a second phase of the sample clock signal. A clock generator circuit generates the first and second phases of the sample clock signal, where the first and second phases are non-overlapping.
摘要翻译：示出了用于编解码器的共享参考电压，其包括用于产生参考电压的电压参考电路。第一采样和保持电路具有通过由编解码器的采样时钟信号的第一相位控制的第一开关耦合到电压参考电路的输出的第一电容器。第二采样和保持电路具有通过由采样时钟信号的第二相位控制的第二开关耦合到电压参考电路的输出的第二电容器。时钟发生器电路产生采样时钟信号的第一和第二相，其中第一和第二相不重叠。

5. 发明申请

US20060210064A1 Ring detection and snoop circuit 失效
公开(公告)号：US20060210064A1
公开(公告)日：2006-09-21
申请号：US11291731
申请日：2005-12-01
申请人： Wayne Holcombe , Vitor Pereira , Tiago Marques
发明人： Wayne Holcombe , Vitor Pereira , Tiago Marques
IPC分类号： H04L12/50
CPC分类号： H04M11/066
摘要： A ring detect circuit is shown that includes a regenerative latch configured to be coupled to a telephone line. The regenerative latch is configured to generate a fast transient signal in response to a ring signal on the telephone line. The latch is coupled to an isolation transformer through a capacitor. The fast transient passes across the capacitor and through the transformer. A comparator detects the fast transient and, responsive thereto, generates a ring detect signal.

6. 发明申请

US20060133602A1 Flexible hook switch driver circuit 失效
公开(公告)号：US20060133602A1
公开(公告)日：2006-06-22
申请号：US11291732
申请日：2005-12-01
申请人： Wayne Holcombe , Vitor Pereira
发明人： Wayne Holcombe , Vitor Pereira
IPC分类号： H04M9/08 , H04M1/00 , H04M9/00
CPC分类号： H04M1/738
摘要： Disclosed is a switch driver circuit is shown where the circuit can control current driven devices and drive devices across a capacitive barrier. A mode control signal determines whether the circuit is in a current mode or a capacitive mode. In current mode, the circuit provides a current output signal at an output of the circuit in response to a subject signal, such as an ON switch control signal for a hook switch application. In capacitive mode, the circuit provides a clocked output signal at the output of the circuit in response to the subject signal, such that the clocked output signal can pass across a capacitive isolation barrier.

7. 发明授权

US07536005B2 Ring detection and snoop circuit 失效
标题翻译：环形探测和窥探电路
公开(公告)号：US07536005B2
公开(公告)日：2009-05-19
申请号：US11291731
申请日：2005-12-01
申请人： Wayne T. Holcombe , Vitor Pereira , Tiago Marques
发明人： Wayne T. Holcombe , Vitor Pereira , Tiago Marques
IPC分类号： H04M1/00
CPC分类号： H04M11/066
摘要： A ring detect circuit is shown that includes a regenerative latch configured to be coupled to a telephone line. The regenerative latch is configured to generate a fast transient signal in response to a ring signal on the telephone line. The latch is coupled to an isolation transformer through a capacitor. The fast transient passes across the capacitor and through the transformer. A comparator detects the fast transient and, responsive thereto, generates a ring detect signal.
摘要翻译：示出了环形检测电路，其包括被配置为耦合到电话线的再生锁存器。再生锁存器被配置为响应于电话线路上的振铃信号而产生快速瞬态信号。锁存器通过电容器耦合到隔离变压器。快速瞬变通过电容器并通过变压器。比较器检测快速瞬变，并响应于此产生环检测信号。

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