-
31.发明授权公开(公告)号：US07761056B2
公开(公告)日：2010-07-20
申请号：US10897953
申请日：2004-07-23
CPC分类号： H04B1/1615 , H04W52/0229 , Y02D70/1224 , Y02D70/40
摘要： A method of operating a radio-frequency (RF) circuitry and a signal-processing circuitry in a mobile telephone apparatus includes at least partially disabling the signal-processing circuitry while transmitting or receiving signals. In one example, a processor is efficiently disabled by generating and servicing an interrupt of relatively high priority. One advantage of this example is that preexisting, legacy code can be maintained, while still achieving the desired objectives. The processor can be enabled by generating and servicing a second high priority interrupt.
摘要翻译： 在移动电话设备中操作射频（RF）电路和信号处理电路的方法包括在发送或接收信号时至少部分禁用信号处理电路。 在一个示例中，通过产生和服务具有较高优先级的中断来有效地禁止处理器。 该示例的一个优点是，可以维持预先存在的遗留代码，同时仍然实现期望的目标。 可以通过生成和维护第二个高优先级中断来使能处理器。
-
32.发明授权Method and apparatus for handling deeply discharged batteries in a mobile station 有权用于处理移动台中的深度排出的电池的方法和装置公开(公告)号：US07671560B2
公开(公告)日：2010-03-02
申请号：US11525383
申请日：2006-09-22
IPC分类号： H02J7/00 , H02J7/04 , G01N27/416 , H02H3/24
CPC分类号： H02J7/0075
摘要： In one embodiment, the present invention includes a method for performing a test on a rechargeable battery to indirectly determine a state of protection circuitry associated with the battery. The method may discharge the battery by controlling a pull-down current into a system, determine if the battery voltage falls below a first threshold level within a predetermined amount of time, and if so provide a pre-charge current to the battery.
摘要翻译： 在一个实施例中，本发明包括一种用于对可充电电池执行测试以间接地确定与电池相关联的保护电路的状态的方法。 该方法可以通过控制系统中的下拉电流来放电电池，确定电池电压是否在预定时间内下降到第一阈值以下，如果提供给电池的预充电电流。
-
33.发明授权Apparatus using interrupts for controlling a processor for radio isolation and associated method 有权使用中断控制处理器进行无线电隔离的装置和相关方法公开(公告)号：US08472990B2
公开(公告)日：2013-06-25
申请号：US10898058
申请日：2004-07-23
IPC分类号： H04B7/00
CPC分类号： H04W52/028 , H04B1/1615 , Y02D70/1224 , Y02D70/40
摘要： A method of operating a radio-frequency (RF) circuitry and a signal-processing circuitry in a mobile telephone apparatus includes at least partially disabling the signal-processing circuitry while transmitting or receiving signals. In one example, a processor is efficiently disabled by generating and servicing an interrupt of relatively high priority. One advantage of this example is that preexisting, legacy code can be maintained, while still achieving the desired objectives. The processor can be enabled by generating and servicing a second high priority interrupt.
摘要翻译： 在移动电话设备中操作射频（RF）电路和信号处理电路的方法包括在发送或接收信号时至少部分禁用信号处理电路。 在一个示例中，通过产生和服务具有较高优先级的中断来有效地禁止处理器。 该示例的一个优点是，可以维持预先存在的遗留代码，同时仍然实现期望的目标。 可以通过生成和维护第二个高优先级中断来使能处理器。
-
34.发明授权Method to improve the jitter of high frequency phase locked loops used in read channels 失效改善读通道中使用的高频锁相环的抖动的方法
公开(公告)号：US6111712A
公开(公告)日：2000-08-29
申请号：US36608
申请日：1998-03-06
CPC分类号： H03L7/199 , G11B19/247 , G11B20/10009 , H03L7/23 , G11B20/1403 , H03L7/0891
摘要： A system and method is provided to improve the jitter performance of high frequency synthesizers used in read/write channel circuits. The frequency synthesizer is implemented with multiple phase locked loops arranged in a cascaded fashion to increase the update rates at which the cascaded loops operate at for a given frequency resolution of the synthesizer. The cascaded or staged phase locked loops may be utilized for generating read, write, and servo clocks for a read/write channel circuit. The cascaded phase locked loops may also be arranged such that one or more stages are shared to generate the read, write or servo clocks.
摘要翻译： 提供了一种提高读/写通道电路中使用的高频合成器的抖动性能的系统和方法。 频率合成器由级联方式布置的多个锁相环实现，以增加级联环路在合成器的给定频率分辨率下工作的更新速率。 级联或分级锁相环可用于为读/写通道电路产生读，写和伺服时钟。 级联锁相环也可以被布置为使得一个或多个级被共享以产生读，写或伺服时钟。
-
35.发明授权Method and system to improve single synthesizer setting times for small frequency steps in read channel circuits 失效提高读通道电路中小频率步长单合成器设定时间的方法和系统
公开(公告)号：US6028727A
公开(公告)日：2000-02-22
申请号：US924190
申请日：1997-09-05
CPC分类号： G11B20/10055 , G11B20/10009 , G11B20/10037 , G11B20/1403 , H03L7/0891 , H03L7/099 , H03L7/10 , H03L7/187 , H03L7/199
摘要： A system and method is disclosed in which a circuit is provided to improve the settling performance of synthesizers used in read/write channel applications when the synthesizer is required to switch frequencies by a small percentage quickly. This is useful in read channel applications where the clock recovery is performed using an all-digital PLL. A digital timing recovery scheme is utilized in which one data frequency synthesizer provides both write and read frequencies. The read frequency is set higher than the write frequency to allow for oversampling when reading data from the storage medium. When changing from a write to read frequency or vice-versa the frequency synthesizer rapidly settles to the new frequency. The frequency synthesizer includes a phase locked loop which utilizes a controllable oscillator. The phase locked loop divisors are changed to obtain the desired frequency changes. An input signal to the controllable oscillator is also changed in order to obtain the rapid settling times. In one embodiment the oscillator is a current controlled oscillator and the control current to the oscillator is modified based on whether the data frequency synthesizer is utilized for a read operation or a write operation.
摘要翻译： 公开了一种系统和方法，其中当需要合成器快速切换频率时，提供电路以改善在读/写通道应用中使用的合成器的稳定性能。 这在使用全数字PLL执行时钟恢复的读通道应用中非常有用。 使用数字定时恢复方案，其中一个数据频率合成器提供写入和读取频率。 读取频率设置为高于写入频率，以便在从存储介质读取数据时允许过采样。 当从写入到读取频率变化时，频率合成器快速地定位到新的频率。 频率合成器包括利用可控振荡器的锁相环。 改变锁相环除数以获得所需的频率变化。 向可控振荡器的输入信号也被改变以获得快速的建立时间。 在一个实施例中，振荡器是电流控制振荡器，并且基于数据频率合成器是否用于读取操作或写入操作来修改到振荡器的控制电流。
-
36.发明申请Method and apparatus for handling deeply discharged batteries in a mobile station 有权用于处理移动台中的深度排出的电池的方法和装置公开(公告)号：US20080074081A1
公开(公告)日：2008-03-27
申请号：US11525383
申请日：2006-09-22
IPC分类号： H02J7/00
CPC分类号： H02J7/0075
摘要： In one embodiment, the present invention includes a method for performing a test on a rechargeable battery to indirectly determine a state of protection circuitry associated with the battery. The method may discharge the battery by controlling a pull-down current into a system, determine if the battery voltage falls below a first threshold level within a predetermined amount of time, and if so provide a pre-charge current to the battery.
摘要翻译： 在一个实施例中，本发明包括一种用于对可充电电池执行测试以间接地确定与电池相关联的保护电路的状态的方法。 该方法可以通过控制系统中的下拉电流来放电电池，确定电池电压是否在预定时间内下降到第一阈值以下，如果提供给电池的预充电电流。
-
公开(公告)号：US07248848B2
公开(公告)日：2007-07-24
申请号：US10881167
申请日：2004-06-30
IPC分类号： H04B1/10
CPC分类号： H04B15/04
摘要： A communication apparatus includes a radio frequency circuit that operates on a radio frequency signal and a digital processing circuit coupled to the radio frequency circuit. The digital processing circuit includes a first timing circuit that provides timed signals to control timing of system operations during an active mode of operation of the digital processing circuit, and a second timing circuit that provides timing signals to control timing of system operations during an active mode of operation of the radio frequency circuit. In one particular embodiment, at least a portion of the first timing circuit is disabled when the radio frequency circuit is active (receiving and/or transmitting).
摘要翻译： 通信装置包括对射频信号进行动作的射频电路和与射频电路耦合的数字处理电路。 数字处理电路包括第一定时电路，其提供定时信号以控制在数字处理电路的主动操作模式期间的系统操作的定时;以及第二定时电路，其提供定时信号以控制在主动模式期间系统操作的定时 的射频电路的操作。 在一个具体实施例中，当射频电路处于活动状态（接收和/或发送）时，第一定时电路的至少一部分被禁用。
-
38.发明授权Apparatus for controlling a digital signal processor for radio isolation and associated methods 有权用于控制用于无线电隔离的数字信号处理器和相关方法的装置公开(公告)号：US07433393B2
公开(公告)日：2008-10-07
申请号：US10955926
申请日：2004-09-30
IPC分类号： H04B1/38
CPC分类号： H04B1/10 , G06Q10/10 , G06Q10/107 , H04B1/1615 , H04B15/04 , H04B2215/064 , H04B2215/065 , H04B2215/066 , H04W16/14 , H04W52/029 , Y02D70/1222 , Y02D70/1224 , Y02D70/40
摘要： A method of operating a radio-frequency (RF) circuitry and a signal-processing circuitry in a mobile telephone apparatus includes at least partially disabling the signal-processing circuitry while transmitting or receiving signals. In one example, a processor is efficiently disabled by generating and servicing an interrupt of relatively high priority. One advantage of this example is that preexisting, legacy code can be maintained, while still achieving the desired objectives. The processor can be enabled by generating and servicing a second high priority interrupt.
摘要翻译： 在移动电话设备中操作射频（RF）电路和信号处理电路的方法包括在发送或接收信号时至少部分禁用信号处理电路。 在一个示例中，通过产生和服务具有较高优先级的中断来有效地禁止处理器。 该示例的一个优点是，可以维持预先存在的遗留代码，同时仍然实现期望的目标。 可以通过生成和维护第二个高优先级中断来使能处理器。
-
39.发明授权Communication apparatus implementing time domain isolation with restricted bus access 有权通信设备实现有限公共汽车访问的时域隔离公开(公告)号：US07380033B2
公开(公告)日：2008-05-27
申请号：US11479733
申请日：2006-06-30
CPC分类号： H04W52/0283 , H04W52/029 , Y02D70/1222 , Y02D70/1224 , Y02D70/1226 , Y02D70/21
摘要： A communication apparatus includes a radio frequency circuit that operates on a radio frequency signal and a digital processing circuit coupled to the radio frequency circuit. The digital processing circuit includes a plurality of bus masters coupled to a shared bus. A bus arbiter is provided for arbitrating between requests to access the bus by a first bus master and one or more other bus masters. Accesses by the one or more other bus masters to the bus are restricted in response to a signal indicative of a change in a mode of operation of the RF circuit. In one particular implementation, a communication apparatus employs time domain isolation wherein the digital processing circuit may be placed in a shutdown mode when the radio frequency circuit is active.
摘要翻译： 通信装置包括对射频信号进行动作的射频电路和与射频电路耦合的数字处理电路。 数字处理电路包括耦合到共享总线的多个总线主控器。 总线仲裁器被提供用于在由第一总线主机和一个或多个其他总线主机访问总线的请求之间进行仲裁。 响应于指示RF电路的操作模式的变化的信号，限制了一个或多个其它总线主机对总线的访问。 在一个具体实现中，通信设备采用时域隔离，其中当射频电路处于活动状态时，数字处理电路可以处于关闭模式。
-
40.发明申请公开(公告)号：US20060229024A1
公开(公告)日：2006-10-12
申请号：US11094583
申请日：2005-03-30
CPC分类号： H04B1/0475
摘要： The invention can utilize a switching power regulator and a non-switching power regulator in conjunction to provide regulated power to the digital logic. The digital logic and switching regulator may be deactivated during RF activity so that interference from both the digital circuitry and the switching regulator is significantly reduced. The state of the digital circuitry may be maintained during this standby period by using the non-switching power regulator to provide an as-required leakage current to the digital circuitry in order to maintain state. After the RF event (e.g. sending or receiving data) has concluded, the switching regulator may be activated and digital processing continued using the digital logic with no loss of continuity.
摘要翻译： 本发明可以结合使用开关功率调节器和非开关功率调节器来向数字逻辑提供调节功率。 数字逻辑和开关调节器可以在RF活动期间被去激活，使得来自数字电路和开关调节器的干扰显着降低。 数字电路的状态可以在该待机期间通过使用非开关功率调节器来向数字电路提供所需的泄漏电流以维持状态。 在RF事件（例如发送或接收数据）已经结束之后，可以激活开关调节器，并且数字处理继续使用数字逻辑而不损失连续性。
-
-
-
-
-
-
-
-
-
搜索结果
41 条记录 (耗时 0.067 秒)
