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1. 发明授权

US6064869A Suppression of noise between phase lock loops in a selective call receiver and method therefor 失效
标题翻译：选择呼叫接收机中锁相环之间的噪声抑制及其方法
公开(公告)号：US6064869A
公开(公告)日：2000-05-16
申请号：US33011
申请日：1998-03-02
申请人： Darrell Eugene Davis , Scott Robert Humphreys
发明人： Darrell Eugene Davis , Scott Robert Humphreys
IPC分类号： H03L7/07 , H03L7/23 , H04B15/04 , H04Q7/30
CPC分类号： H03L7/07 , H03L7/23 , H04B15/04 , H04B2215/064
摘要： A synthesizer (100) is used for generating a plurality of synthesized clock signals (128, 156). The synthesizer includes a clock source (102) for generating a common frequency reference signal (103), and a clock generator (104) coupled to the common frequency reference signal for generating a plurality of generated clock signals (106, 108), wherein each of the plurality of generated clock signals is offset from each other by a predetermined phase offset (189, 192). In addition, the synthesizer includes a plurality of PLLs (Phase Locked Loops) (166-168) for generating a selected one of the plurality of synthesized clock signals, wherein each of the plurality of PLLs is coupled to, and operates from, a corresponding one of the plurality of generated clock signals, and wherein the predetermined phase offset between each of the plurality of generated clock signals is known to suppress noise between the plurality of PLLs operating therefrom.
摘要翻译：合成器（100）用于产生多个合成时钟信号（128,156）。合成器包括用于产生公共频率参考信号（103）的时钟源（102）和耦合到公共频率参考信号的时钟发生器（104），用于产生多个产生的时钟信号（106,108），其中每个多个生成的时钟信号彼此偏移了预定的相位偏移（189,192）。另外，合成器包括多个PLL（锁相环）（166-168），用于产生多个合成时钟信号中选择的一个，其中多个PLL中的每一个耦合到相应的多个生成的时钟信号中的一个，并且其中已知多个所生成的时钟信号中的每一个之间的预定相位偏移，以抑制从其操作的多个PLL之间的噪声。

2. 发明授权

US6100730A Prescaler system circuits 失效
标题翻译：预分频系统电路
公开(公告)号：US6100730A
公开(公告)日：2000-08-08
申请号：US201015
申请日：1998-11-30
申请人： Darrell Eugene Davis , Scott Robert Humphreys
发明人： Darrell Eugene Davis , Scott Robert Humphreys
IPC分类号： H03K3/356 , H03B19/00
CPC分类号： H03K3/356121
摘要： A prescaler system (100) has a prescaler circuit (102) coupled to a divider (104), wherein the divider includes an improved dynamic flip flop divider (118). The divider (118) includes a TSPC nine-transistor D-flip-flop (10). The divider further includes a tenth transistor such as N channel device (41) having a source coupled to ground (43), a drain coupled to a junction between a drain of a P channel device (34) and a drain of another N channel device (37). The divider also includes an eleventh transistor such as N channel device (42) having a source coupled to ground and a drain coupled to a junction between the drain of a P channel device (35) and the drain of a N channel device (39), the junction providing a feedback signal to a N channel device (36), wherein the eleventh transistor further has a gate coupled to the output signal (/Q.sub.A).
摘要翻译：预分频器系统（100）具有耦合到分频器（104）的预分频器电路（102），其中分频器包括改进的动态触发器分频器（118）。分压器（118）包括TSPC九晶体管D触发器（10）。分压器还包括第十晶体管，例如具有耦合到地（43）的源极的N沟道器件（41），耦合到P沟道器件（34）的漏极与另一N沟道器件的漏极之间的结的漏极（37）。分压器还包括第十一晶体管，例如具有耦合到地的源极的N沟道器件（42）和耦合到P沟道器件（35）的漏极与N沟道器件（39）的漏极之间的结的漏极，，所述接点向N沟道器件（36）提供反馈信号，其中所述第十一晶体管还具有耦合到所述输出信号（/ QA）的栅极。

3. 发明授权

US5939911A Frequency prescaler method and apparatus responsive to low input drive levels 失效
标题翻译：响应于低输入驱动电平的频率预分频器方法和装置
公开(公告)号：US5939911A
公开(公告)日：1999-08-17
申请号：US033619
申请日：1998-03-05
申请人： Scott Robert Humphreys , Darrell Eugene Davis , Barry W. Herold
发明人： Scott Robert Humphreys , Darrell Eugene Davis , Barry W. Herold
IPC分类号： H03L3/00 , H03L7/18 , H03L7/06
CPC分类号： H03L3/00 , H03L7/18
摘要： A low input prescaler (800) that is responsive to input signals having low amplitude alternating current (AC) components includes a switched tunable prescaler (280) that generates a prescaler output signal (221) having a prescaler output frequency during an operational state of the prescaler and having a free-running frequency that is responsive to a tuning control signal (216) during a tuning state of the prescaler. A frequency comparator (235) generates a comparator output in response to a difference between a reference frequency and the prescaler output frequency. A prescaler tuner (290, 390) adjusts the tuning control signal in response to the comparator output during the tuning state to minimize the difference between the reference frequency and the prescaler output frequency, and holds the tuning control signal during the operational state. The prescaler is used in phase lock loops (200, 400, 600) and other circuits.
摘要翻译：响应于具有低振幅交流（AC）分量的输入信号的低输入预分频器（800）包括一个开关可调预分频器（280），其产生一个预分频器输出信号（221），该预分频器预分频器在操作状态期间具有预分频器输出频率预分频器，并且在预分频器的调谐状态期间具有响应于调谐控制信号（216）的自由运行频率。频率比较器（235）响应于参考频率和预分频器输出频率之间的差产生比较器输出。在调谐状态期间，预分频调谐器（290,390）响应于比较器输出来调整调谐控制信号，以最小化参考频率和预分频器输出频率之间的差异，并且在操作状态期间保持调谐控制信号。预分频器用于锁相环（200,400,600）和其他电路。

4. 发明授权

US08253573B2 Alarm unit for monitoring or detection of an analyte 有权
标题翻译：用于监测或检测分析物的报警单元
公开(公告)号：US08253573B2
公开(公告)日：2012-08-28
申请号：US12661823
申请日：2010-03-25
申请人： Saket Subash Bhatia , Darrell Eugene Davis
发明人： Saket Subash Bhatia , Darrell Eugene Davis
IPC分类号： G08B23/00
CPC分类号： A61F13/42
摘要： An alarm unit for monitoring or detecting presence of an analyte on a separate sensor portion. The present invention comprises only the alarm unit and its means for attachment to a user's clothing. A square plastic casing protects the alarm electronics portion including a signal processing means. A large clip attachment means is included that is easily separated and attached from the casing and is used to attach the unit to clothing and which has enough clearance to be used with thick articles of clothing including diapers and which has a set of teeth frictionally held against a rubber strip portion located on the casing back so as to also enable secure attachment to very thin articles of clothing. A three-way switch is located externally for easy alarm chime and alarm volume selection. Interdependent modes of operation enable the signal processing means to control the alarm unit operation and features including low power indication, improper cable plug installment, three-way switch deactivation during Monitor mode, and a snooze/reset feature by which the alarm is easily disabled temporarily so that, as an example, a user can focus on running to the bathroom where the device is used to treat enuresis.
摘要翻译：用于监测或检测分离物在分离的传感器部分上的存在的报警单元。本发明仅包括警报单元及其用于附着于用户服装的装置。方形塑料外壳保护包括信号处理装置在内的警报电子部分。包括大的夹子附接装置，其容易地从壳体分离和附接，并且用于将单元附接到衣服上，并且具有足够的间隙以与厚的衣物（包括尿布）一起使用，并且具有摩擦地抵抗位于套管背面的橡胶条部分，以便能够牢固地附接到非常薄的衣物上。三通开关位于外部，便于报警铃声和报警音量选择。相互依赖的操作模式使得信号处理装置能够控制报警单元的操作和功能，包括低功率指示，不正确的电缆插头安装，监视模式期间的三通开关停用，以及暂时容易地禁用报警的打盹/复位功能因此，作为示例，用户可以专注于运行到用于治疗遗尿的设备的浴室。

5. 发明申请

US20110234400A1 Alarm unit for monitoring or detection of an analyte 有权
标题翻译：用于监测或检测分析物的报警单元
公开(公告)号：US20110234400A1
公开(公告)日：2011-09-29
申请号：US12661823
申请日：2010-03-25
申请人： Saket Subash Bhatia , Darrell Eugene Davis
发明人： Saket Subash Bhatia , Darrell Eugene Davis
IPC分类号： G08B21/00
CPC分类号： A61F13/42
摘要： An alarm unit for monitoring or detecting presence of an analyte on a separate sensor portion. The present invention comprises only the alarm unit and its means for attachment to a user's clothing. A square plastic casing protects the alarm electronics portion including a signal processing means. A large clip attachment means is included that is easily separated and attached from the casing and is used to attach the unit to clothing and which has enough clearance to be used with thick articles of clothing including diapers and which has a set of teeth frictionally held against a rubber strip portion located on the casing back so as to also enable secure attachment to very thin articles of clothing. A three-way switch is located externally for easy alarm chime and alarm volume selection. Interdependent modes of operation enable the signal processing means to control the alarm unit operation and features including low power indication, improper cable plug installment, three-way switch deactivation during Monitor mode, and a snooze/reset feature by which the alarm is easily disabled temporarily so that, as an example, a user can focus on running to the bathroom where the device is used to treat enuresis.
摘要翻译：用于监测或检测分离物在分离的传感器部分上的存在的报警单元。本发明仅包括警报单元及其用于附着于用户服装的装置。方形塑料外壳保护包括信号处理装置在内的警报电子部分。包括大的夹子附接装置，其容易地从壳体分离和附接，并且用于将单元附接到衣服上，并且具有足够的间隙以与厚的衣物（包括尿布）一起使用，并且具有摩擦地抵抗位于套管背面的橡胶条部分，以便能够牢固地附接到非常薄的衣物上。三通开关位于外部，便于报警铃声和报警音量选择。相互依赖的操作模式使得信号处理装置能够控制报警单元的操作和功能，包括低功率指示，不正确的电缆插头安装，监视模式期间的三通开关停用，以及暂时容易地禁用报警的打盹/复位功能因此，作为示例，用户可以专注于运行到用于治疗遗尿的设备的浴室。

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