专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20070223365A1 APPARATUS FOR AND METHOD OF MINIMIZING BACKOFF FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING TRANSMISSION 有权
标题翻译：正交频分多路复用传输最小化后备的方法及方法
公开(公告)号：US20070223365A1
公开(公告)日：2007-09-27
申请号：US11669326
申请日：2007-01-31
申请人： Yossi Tsfaty , Ofer Friedman , Itay Sherman , Avi Baum
发明人： Yossi Tsfaty , Ofer Friedman , Itay Sherman , Avi Baum
IPC分类号： H04J11/00
CPC分类号： H04L27/2614 , H04L9/00 , H04L25/03866 , H04L2209/04 , H04L2209/80
摘要： A novel and useful mechanism for reducing the required backoff and the peak to average power ratio (PAPR) needed for an OFDM transmitter whiles still meeting spectral mask and EVM specifications. The mechanism searches, for each packet to be transmitted, for several possible scrambler and encryption sequences that would yield the best spectral mask and EVM with lowest PAPR. The search can be performed using the existing transmitter and receiver PHY circuit chain to modulate and demodulate the candidate hypotheses. Once the scrambler sequence and/or encryption sequence is selected, the packet is transmitted using the selected scrambler and encryption sequences. In addition, the invention exploits the fact that even for very low backoff margins, a reduced number of candidate hypotheses may be tested while still yielding a high probability of meet the spectral mask and EVM specifications.
摘要翻译：一种用于减少仍然满足光谱掩模和EVM规范的OFDM发射机所需的所需回退和峰值与平均功率比（PAPR）的新颖有用的机制。该机制针对要发送的每个数据包搜索几个可能产生最佳频谱掩模的扰码器和加密序列以及具有最低PAPR的EVM。可以使用现有的发射机和接收机PHY电路链来执行搜索以对候选假设进行调制和解调。一旦选择了加扰器序列和/或加密序列，则使用所选择的加扰器和加密序列来发送分组。此外，本发明利用了这样一个事实，即即使对于非常低的退避余量，也可以测试候选假设的数量减少，同时仍然产生满足频谱掩模和EVM规范的高概率。

2. 发明申请

US20090017756A1 SYSTEM AND METHOD FOR AVOIDING INTERFERENCE IN A DUAL-SIGNAL DEVICE 有权
标题翻译：用于避免双信号设备干扰的系统和方法
公开(公告)号：US20090017756A1
公开(公告)日：2009-01-15
申请号：US12169903
申请日：2008-07-09
申请人： Yossi Tsfaty , Ran Katz , Ran Irony
发明人： Yossi Tsfaty , Ran Katz , Ran Irony
IPC分类号： H04B7/26 , H04M1/00
CPC分类号： H04W48/02 , H04L1/1867 , H04W52/0238 , H04W84/18 , H04W88/06 , Y02D70/144 , Y02D70/146
摘要： A dual-signal wireless transceiver is provided, comprising: a first wireless transceiver circuit configured to transmit and receive first signals using a first protocol; a second wireless transceiver circuit configured to transmit and receive second signals using a second protocol; and a control circuit configured to generate control signals to control operation of the first and second wireless transceiver circuits, wherein the first wireless transceiver circuit is configured to disable second transmission operations by the second wireless transceiver during first transmission operations by the first wireless transceiver circuit through the use of a shutdown signal. In this method, the second protocol allows the second wireless transceiver to retransmit first signals whose transmission was disabled by the shutdown signal. Furthermore, the second protocol is a Bluetooth protocol, and the first protocol is a wireless protocol other than the Bluetooth protocol.
摘要翻译：提供了一种双信号无线收发器，包括：第一无线收发器电路，被配置为使用第一协议来发送和接收第一信号; 第二无线收发器电路，被配置为使用第二协议来发送和接收第二信号; 以及控制电路，被配置为产生控制信号以控制第一和第二无线收发器电路的操作，其中第一无线收发器电路被配置为在第一无线收发器电路通过第一无线收发器电路通过使用关机信号。在该方法中，第二协议允许第二无线收发器重新发送被关闭信号禁用的第一信号。此外，第二协议是蓝牙协议，第一协议是蓝牙协议以外的无线协议。

3. 发明授权

US08189456B2 Apparatus for and method of minimizing backoff for orthogonal frequency division multiplexing transmission 有权
标题翻译：用于正交频分复用传输最小化退避的装置和方法
公开(公告)号：US08189456B2
公开(公告)日：2012-05-29
申请号：US11669326
申请日：2007-01-31
申请人： Yossi Tsfaty , Ofer Friedman , Itay Sherman , Avi Baum
发明人： Yossi Tsfaty , Ofer Friedman , Itay Sherman , Avi Baum
IPC分类号： H04J11/00 , H04L27/00 , H03M13/00
CPC分类号： H04L27/2614 , H04L9/00 , H04L25/03866 , H04L2209/04 , H04L2209/80
摘要： A novel and useful mechanism for reducing the required backoff and the peak to average power ratio (PAPR) needed for an OFDM transmitter whiles still meeting spectral mask and EVM specifications. The mechanism searches, for each packet to be transmitted, for several possible scrambler and encryption sequences that would yield the best spectral mask and EVM with lowest PAPR. The search can be performed using the existing transmitter and receiver PHY circuit chain to modulate and demodulate the candidate hypotheses. Once the scrambler sequence and/or encryption sequence is selected, the packet is transmitted using the selected scrambler and encryption sequences. In addition, the invention exploits the fact that even for very low backoff margins, a reduced number of candidate hypotheses may be tested while still yielding a high probability of meet the spectral mask and EVM specifications.
摘要翻译：一种用于减少仍然满足光谱掩模和EVM规范的OFDM发射机所需的所需回退和峰值与平均功率比（PAPR）的新颖有用的机制。该机制针对要发送的每个数据包搜索几个可能产生最佳频谱掩模的扰码器和加密序列以及具有最低PAPR的EVM。可以使用现有的发射机和接收机PHY电路链来执行搜索以对候选假设进行调制和解调。一旦选择了加扰器序列和/或加密序列，则使用所选择的加扰器和加密序列来发送分组。此外，本发明利用了这样一个事实，即即使对于非常低的退避余量，也可以测试候选假设的数量减少，同时仍然产生满足频谱掩模和EVM规范的高概率。

4. 发明申请

US20080160928A1 APPARATUS FOR AND METHOD OF AUTOMATIC RADIO LINK ESTABLISHMENT 有权
标题翻译：自动无线链路建立装置及方法
公开(公告)号：US20080160928A1
公开(公告)日：2008-07-03
申请号：US11617631
申请日：2006-12-28
申请人： Yossi Tsfaty , Itay Sherman
发明人： Yossi Tsfaty , Itay Sherman
IPC分类号： H04B1/40
CPC分类号： H04H20/62 , H04H60/13
摘要： A novel and useful mechanism for automatically establishing a radio link between a communications device and a commercially available FM radio receiver, thereby eliminating the need to manually configure both the target FM radio receiver and the FM transmitter to a suitable FM station. The mechanism scans the RF spectrum periodically for candidate frequencies over which to transmit the desired audio signal to the target radio. Once a suitable frequency is detected, the mechanism waits for an incoming call in the case of a cellular phone or immediately establishes a link such as in the case of a multimedia player. When a connection is to be established, a Radio Data System compatible bitstream is transmitted to configure the target radio to jump to an “alternate frequency” when reception conditions are poor enough. To ensure that the target radio receiver jumps to the desired station, the FM transmitter sends a CW signal to jam or block the station the target radio is currently tuned to. This causes the target radio to jump to the alternate frequency.
摘要翻译：一种用于在通信设备和市售FM无线电接收机之间自动建立无线电链路的新颖有用的机制，从而不需要将目标FM无线电接收机和FM发射机手动配置到合适的FM电台。该机制周期性地扫描RF频谱以将目标音频信号发射到目标无线电的候选频率。一旦检测到合适的频率，该机构在蜂窝电话的情况下等待来电，或者立即建立诸如在多媒体播放器的情况下的链接。当建立连接时，当接收条件足够差时，发送无线电数据系统兼容比特流以配置目标无线电台跳转到“交替频率”。为了确保目标无线电接收机跳到所需的站，FM发射器发送CW信号以阻塞或阻止目标无线电当前被调谐到的站。这使得目标无线电跳到交替频率。

5. 发明申请

US20080056337A1 Local oscillator with non-harmonic ratio between oscillator and RF frequencies using XOR operation 有权
标题翻译：使用异或运算，振荡器与RF频率之间具有非谐波比的本机振荡器
公开(公告)号：US20080056337A1
公开(公告)日：2008-03-06
申请号：US11844343
申请日：2007-08-23
申请人： Nir Tal , Yossi Tsfaty , Robert B. Staszewski , Gregory Lerner
发明人： Nir Tal , Yossi Tsfaty , Robert B. Staszewski , Gregory Lerner
IPC分类号： H04B1/40 , H03B21/00
CPC分类号： H03B21/02
摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. A synthesizer provides 4/3 the desired frequency fRF. This frequency is divided by two to obtain in-phase and quadrature square waves at ⅔ fRF. The in-phase signal is divided by two again to obtain in-phase and quadrature square waves at ⅓ fRF. The signals are then logically combined using XOR operations to obtain I and Q branch signals containing spectral spurs. Since the spurs are located in non-disturbing bands, they can be filtered out resulting in the desired output signal.
摘要翻译：本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。合成器提供4/3所需的频率f RF。该频率除以2以在2/3 f RF RF获得同相和正交方波。同相信号再次被二分频以在1/3f RF RF下获得同相和正交方波。然后使用XOR操作逻辑地组合信号以获得包含光谱刺激的I和Q分支信号。由于马刺位于非干扰波段，所以它们可被滤除，从而产生所需的输出信号。

6. 发明申请

US20080055014A1 Local oscillator with non-harmonic ratio between oscillator and RF frequencies using wideband modulation spectral replicas 有权
标题翻译：使用宽带调制光谱副本的振荡器和RF频率之间的非谐波比率的本地振荡器
公开(公告)号：US20080055014A1
公开(公告)日：2008-03-06
申请号：US11844460
申请日：2007-08-24
申请人： Yossi Tsfaty
发明人： Yossi Tsfaty
IPC分类号： H03C3/09
CPC分类号： H03C3/40 , H03B19/00 , H03D7/165 , H03K5/00006 , H03K5/13 , H03K5/1565 , H03L7/1806 , H03L2207/50
摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. An input baseband signal is interpolated and upconverted in the digital domain to an IF. The LO operates at a frequency which is a n/m division of the target RF frequency fRF. The IF frequency is configured to ½ of the LO frequency. The upconverted IF signal is then converted to the analog domain via digital power amplifiers followed by voltage combiners. The output of the combiners is band pass filtered to extract the desired replica.
摘要翻译：本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。输入基带信号被插值并在数字域中上变频成IF。 LO以目标RF频率f RF RF的n / m分频的频率操作。 IF频率配置为LO频率的1/2。经上变频的IF信号经数字功率放大器后跟电压组合器转换为模拟域。对组合器的输出进行带通滤波以提取所需的副本。

7. 发明授权

US08498678B2 System and method for reducing power consumption in a wireless device 有权
标题翻译：用于降低无线设备功耗的系统和方法
公开(公告)号：US08498678B2
公开(公告)日：2013-07-30
申请号：US12169762
申请日：2008-07-09
申请人： Yossi Tsfaty , Itay Sherman
发明人： Yossi Tsfaty , Itay Sherman
IPC分类号： H04M1/00
CPC分类号： H04W52/028 , H04B1/46 , Y02D70/144 , Y02D70/40
摘要： A wireless transceiver is provided for transmitting and receiving audio data, comprising: a microphone configured to generate a digital audio signal that includes the audio data, based on a received sound sampled into digital format; a voice detection circuit configured to detect the presence of voice activity in the audio data, and to generate a voice detection signal indicating whether the voice activity is present in the audio data; a transceiver circuit configured to transmit the audio data over a wireless medium; and a control circuit configured to control transmission of the audio data over the wireless medium by the transceiver circuit, based on the voice detection signal. This allows saving of transmission power since no transmission is done during the silence periods. The digital audio signal is at least one of a pulse code modulated signal without compression, and a Bluetooth signal.
摘要翻译：提供了一种用于发送和接收音频数据的无线收发器，包括：麦克风，被配置为基于被采样为数字格式的接收声音来生成包括所述音频数据的数字音频信号; 语音检测电路，被配置为检测音频数据中的语音活动的存在，并产生指示语音活动是否存在于音频数据中的语音检测信号; 收发器电路，被配置为通过无线介质发送音频数据; 以及控制电路，被配置为基于所述语音检测信号，通过所述收发器电路来控制所述无线介质上的所述音频数据的传输。这样可以节省发送功率，因为在静默期间不进行发送。数字音频信号是没有压缩的脉冲编码调制信号和蓝牙信号中的至少一个。

8. 发明授权

US08121214B2 Local oscillator with non-harmonic ratio between oscillator and RF frequencies using XOR operation 有权
标题翻译：使用异或运算，振荡器与RF频率之间具有非谐波比的本机振荡器
公开(公告)号：US08121214B2
公开(公告)日：2012-02-21
申请号：US11844343
申请日：2007-08-23
申请人： Nir Tal , Yossi Tsfaty , Robert B. Staszewski , Gregory Lerner
发明人： Nir Tal , Yossi Tsfaty , Robert B. Staszewski , Gregory Lerner
IPC分类号： H04L27/10
CPC分类号： H03B21/02
摘要： A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes presented are operative to generate I and Q square waves at a designated frequency while avoiding the well known issue of harmonic pulling. A synthesizer provides 4/3 the desired frequency fRF. This frequency is divided by two to obtain in-phase and quadrature square waves at ⅔ fRF. The in-phase signal is divided by two again to obtain in-phase and quadrature square waves at ⅓ fRF. The signals are then logically combined using XOR operations to obtain I and Q branch signals containing spectral spurs. Since the spurs are located in non-disturbing bands, they can be filtered out resulting in the desired output signal.
摘要翻译：本地振荡器（LO）生成的新颖有用的装置和方法，其本地振荡器和RF频率之间具有非整数倍乘比。所呈现的LO产生方案可用于以指定频率产生I和Q方波，同时避免众所周知的谐波拉动问题。合成器提供所需频率fRF的4/3。该频率除以2以在⅔fRF获得同相和正交方波。同相信号再次被二分频，以在1/3fRF处获得同相和正交方波。然后使用XOR操作逻辑地组合信号以获得包含光谱刺激的I和Q分支信号。由于马刺位于非干扰波段，所以它们可被滤除，从而产生所需的输出信号。

9. 发明授权

US08019280B2 System and method for avoiding interference in a dual-signal device 有权
标题翻译：避免双信号装置干扰的系统和方法
公开(公告)号：US08019280B2
公开(公告)日：2011-09-13
申请号：US12169903
申请日：2008-07-09
申请人： Yossi Tsfaty , Ran Katz , Ran Irony
发明人： Yossi Tsfaty , Ran Katz , Ran Irony
IPC分类号： H04B7/00
CPC分类号： H04W48/02 , H04L1/1867 , H04W52/0238 , H04W84/18 , H04W88/06 , Y02D70/144 , Y02D70/146
摘要： A dual-signal wireless transceiver is provided, comprising: a first wireless transceiver circuit configured to transmit and receive first signals using a first protocol; a second wireless transceiver circuit configured to transmit and receive second signals using a second protocol; and a control circuit configured to generate control signals to control operation of the first and second wireless transceiver circuits, wherein the first wireless transceiver circuit is configured to disable second transmission operations by the second wireless transceiver during first transmission operations by the first wireless transceiver circuit through the use of a shutdown signal. In this method, the second protocol allows the second wireless transceiver to retransmit first signals whose transmission was disabled by the shutdown signal. Furthermore, the second protocol is a Bluetooth protocol, and the first protocol is a wireless protocol other than the Bluetooth protocol.
摘要翻译：提供了一种双信号无线收发器，包括：第一无线收发器电路，被配置为使用第一协议来发送和接收第一信号; 第二无线收发器电路，被配置为使用第二协议来发送和接收第二信号; 以及控制电路，被配置为产生控制信号以控制第一和第二无线收发器电路的操作，其中第一无线收发器电路被配置为在第一无线收发器电路通过第一无线收发器电路通过使用关机信号。在该方法中，第二协议允许第二无线收发器重新发送被关闭信号禁用的第一信号。此外，第二协议是蓝牙协议，第一协议是蓝牙协议以外的无线协议。

10. 发明授权

US07792498B2 Apparatus for and method of automatic radio link establishment 有权
标题翻译：自动无线电链路建立的装置和方法
公开(公告)号：US07792498B2
公开(公告)日：2010-09-07
申请号：US11617631
申请日：2006-12-28
申请人： Yossi Tsfaty , Itay Sherman
发明人： Yossi Tsfaty , Itay Sherman
IPC分类号： H04B1/40
CPC分类号： H04H20/62 , H04H60/13
摘要： A novel and useful mechanism for automatically establishing a radio link between a communications device and a commercially available FM radio receiver, thereby eliminating the need to manually configure both the target FM radio receiver and the FM transmitter to a suitable FM station. The mechanism scans the RF spectrum periodically for candidate frequencies over which to transmit the desired audio signal to the target radio. Once a suitable frequency is detected, the mechanism waits for an incoming call in the case of a cellular phone or immediately establishes a link such as in the case of a multimedia player. When a connection is to be established, a Radio Data System compatible bitstream is transmitted to configure the target radio to jump to an “alternate frequency” when reception conditions are poor enough. To ensure that the target radio receiver jumps to the desired station, the FM transmitter sends a CW signal to jam or block the station the target radio is currently tuned to. This causes the target radio to jump to the alternate frequency.
摘要翻译：一种用于在通信设备和市售FM无线电接收机之间自动建立无线电链路的新颖有用的机制，从而不需要将目标FM无线电接收机和FM发射机手动配置到合适的FM电台。该机制周期性地扫描RF频谱以将目标音频信号发射到目标无线电的候选频率。一旦检测到合适的频率，该机构在蜂窝电话的情况下等待来电，或者立即建立诸如在多媒体播放器的情况下的链接。当建立连接时，当接收条件足够差时，发送无线电数据系统兼容比特流以配置目标无线电台跳转到“交替频率”。为了确保目标无线电接收机跳到所需的站，FM发射器发送CW信号以阻塞或阻止目标无线电当前被调谐到的站。这使得目标无线电跳到交替频率。

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