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1. 发明授权

US09717298B1 MEMS valve actuator system 有权
公开(公告)号：US09717298B1
公开(公告)日：2017-08-01
申请号：US14469609
申请日：2014-08-27
申请人： Raymond Louis Barrett, Jr.
发明人： Raymond Louis Barrett, Jr.
IPC分类号： A42B3/12 , F16K31/00 , A42B3/28 , A61B5/00
CPC分类号： A42B3/122 , A42B3/121 , A42B3/281 , A61B5/002 , A61B5/1114 , A61B5/4064 , A61B5/6803 , A61B2503/10 , A61B2562/0219 , A61B2562/04 , F16K31/004 , F16K99/0048 , F16K2099/0082
摘要： A micro-electro-mechanical (MEMS) exhaust valve-based impact attenuating fluid filled cell for use in cushioning impact and decelerating of a wearer's body portion (e.g. head, shoulder, torso, etc.) after an impact. In combination with the use of accelerometers, pressure sensors, location and other electronics supply signals to a microcontroller, the controlled opening/closing of said exhaust valve (resulting in the expelling of said fluids with an optional combination with cell refill means) when certain parameters exceed a threshold. Individuals who engage in activities that carry a risk of injury to the head from impact in the normal course of the activity could, in combination with regular exams, benefit from a system that produces and updates a kinematic 3D model of the individual's head, including brain matter, cerebrospinal fluid paths, arterial and venous blood flow pathways, as well as the skull, supporting connective tissues and other biological structures in the head suitable for interaction with exogenous stimuli prepared from hypothetical or actual recorded impact events.

2. 发明授权

US06768398B2 Method and apparatus for creating a radio frequency filter 有权
标题翻译：用于创建射频滤波器的方法和装置
公开(公告)号：US06768398B2
公开(公告)日：2004-07-27
申请号：US10021636
申请日：2001-12-12
申请人： Edgar Herbert Callaway, Jr. , Raymond Louis Barrett, Jr. , Gilberto Jacinto Hernandez , Douglas Harold Weisman
发明人： Edgar Herbert Callaway, Jr. , Raymond Louis Barrett, Jr. , Gilberto Jacinto Hernandez , Douglas Harold Weisman
IPC分类号： H01P1203
CPC分类号： H01P1/2039
摘要： A transmission line (218) is formed to have a characteristic impedance which increases at a first substantially exponential rate with respect to a distance from the input (202). A plurality of resonators (206-214) are coupled to the transmission line and positioned at a plurality of locations along the transmission line. The plurality of resonators has resonant frequencies that decrease at a second substantially exponential rate with respect to the distance from the input. An output signal (810, 812) is obtained at a point in the filter that produces a filter response having a corner frequency.
摘要翻译：传输线（218）被形成为具有相对于距离输入（202）的距离以第一基本指数速率增加的特性阻抗。多个谐振器（206-214）耦合到传输线并且位于沿着传输线的多个位置处。多个谐振器具有相对于与输入的距离以相对于第二基本指数速率降低的谐振频率。在产生具有拐角频率的滤波器响应的滤波器中的点处获得输出信号（810,812）。

3. 发明授权

US06573782B2 Sigma delta FM ratio detector 有权
公开(公告)号：US06573782B2
公开(公告)日：2003-06-03
申请号：US09769941
申请日：2001-01-26
申请人： Raymond Louis Barrett, Jr. , Barry Herold , Scott Humphreys
发明人： Raymond Louis Barrett, Jr. , Barry Herold , Scott Humphreys
IPC分类号： H03D302
CPC分类号： H03D3/02
摘要： A circuit (100) for generating a ratio signal indicating a ratio of frequency error to signal magnitude of an input signal includes an FM ratio detector (110) and a sigma-delta analog-to-digital converter (130). The FM ratio detector (110) is responsive to the input signal and generates a magnitude signal and an error signal. The magnitude signal is representative of a magnitude of the input signal and the error signal is representative of a frequency error of the input signal relative to a preselected frequency. The sigma-delta analog-to-digital converter (130), which is responsive to the filtered magnitude signal and the filtered error signal, generates a stream of logic “1's” and logic “0's” that are indicative of a ratio of the filtered error signal to the filtered magnitude signal. Thus, the sigma-delta analog-to-digital converter generates the ratio signal (132).

4. 发明授权

US6087894A Low power precision current reference 失效
标题翻译：低功率精密电流参考
公开(公告)号：US6087894A
公开(公告)日：2000-07-11
申请号：US32877
申请日：1998-03-02
申请人： Raymond Louis Barrett, Jr. , Barry W. Herold , Scott Humphreys , Lawrence L. Case
发明人： Raymond Louis Barrett, Jr. , Barry W. Herold , Scott Humphreys , Lawrence L. Case
IPC分类号： G05F3/26 , G05F3/02
CPC分类号： G05F3/262
摘要： A first complementary metal oxide semiconductor (CMOS) current reference circuit (100, 500) has a first and a second current mirror (110, 150) and is implemented using one of bulk wafer technology and silicon on insulator (SOI) technology. The first current mirror (110) has an output stage (130) that includes at least one cascode coupled field effect transistor (FET) (125) having one of a source tied well (when implemented using bulk wafer technology) or a source tied body (when implemented using SOI technology). A second CMOS current reference circuit (600, 800) has a first and a second current mirror (650, 610) and is implemented using SOI technology. The first current mirror (650) has a first bias FET (161) having a gate tied body.
摘要翻译：第一互补金属氧化物半导体（CMOS）电流参考电路（100,500）具有第一和第二电流镜（110,150），并且使用体晶片技术和绝缘体上硅（SOI）技术之一来实现。第一电流镜（110）具有输出级（130），该输出级包括至少一个共源共栅耦合场效应晶体管（FET）（125），其具有源极连接（当使用体晶片技术实现时）或源极体（使用SOI技术实现时）。第二CMOS电流参考电路（600,800）具有第一和第二电流镜（650,610），并且使用SOI技术来实现。第一电流镜（650）具有具有门接合体的第一偏置FET（161）。

5. 发明授权

US5805095A Two's complement digital to analog converter 失效
标题翻译：二进制补码数模转换器
公开(公告)号：US5805095A
公开(公告)日：1998-09-08
申请号：US781252
申请日：1997-01-10
申请人： Scott Robert Humphreys , Raymond Louis Barrett, Jr. , Lawrence Loren Case
发明人： Scott Robert Humphreys , Raymond Louis Barrett, Jr. , Lawrence Loren Case
IPC分类号： H03M1/66
CPC分类号： H03M1/66
摘要： A two's complement digital to analog converter (300) is for converting a two's complement binary value to an analog output current, and includes a control circuit (310) which generates controlled value bits, a digital to analog current converter (DACC) (320), and an augmenter (330). The DACC (320) generates a DACC analog current which is a portion of the analog output current and which has an absolute value which is related to the binary value of the controlled value bits. The augmenter (330), which is coupled to a most significant bit of the two's complement binary value, generates a portion of the analog output current by modifying the absolute value of the DACC analog current by a least significant bit current increment when the most significant bit indicates a negative value of the two's complement binary value.
摘要翻译：二进制补码数模转换器（300）用于将二进制补码二进制值转换为模拟输出电流，并且包括产生受控值位的控制电路（310），数模转换器（DACC）（320），以及增强器（330）。 DACC（320）产生作为模拟输出电流的一部分的DACC模拟电流，其具有与控制值位的二进制值相关的绝对值。耦合到二进制补码二进制值的最高有效位的增益器（330）通过在最高有效位电流增量时修改DACC模拟电流的绝对值来产生模拟输出电流的一部分位表示二进制补码二进制值的负值。

6. 发明授权

US5770980A Fast starting oscillator 失效
标题翻译：快速启动振荡器
公开(公告)号：US5770980A
公开(公告)日：1998-06-23
申请号：US773244
申请日：1996-12-23
申请人： Raymond Louis Barrett, Jr. , John Wayne Simmons , Barry Herold , Grazyna A. Pajunen
发明人： Raymond Louis Barrett, Jr. , John Wayne Simmons , Barry Herold , Grazyna A. Pajunen
IPC分类号： H03B1/00 , H03B5/36 , H03B5/06
CPC分类号： H03B5/368 , H03B2200/0008 , H03B2200/0026 , H03B2200/0034 , H03B2200/0038 , H03B2200/0058 , H03B2200/0062 , H03B2200/0082 , H03B2200/0094 , H03B2201/0208 , H03B5/364
摘要： A low power, fast starting oscillator (10) of the Colpitts type includes an amplifier (12) that provides voltage gain and feeds a source follower circuit (14) that provides a desirable output impedance. A crystal (16) is coupled from an output of the source follower circuit (14) back to the amplifier's input (32). The voltage gain of the amplifier (12) and the output impedance of the source follower circuit (14) are independently selectable to provide an optimum transconductance for the oscillator (10) to start quickly. When oscillations reach a threshold value, the transconductance may be reduced to save power.
摘要翻译： Colpitts型的低功率，快速启动振荡器（10）包括提供电压增益的放大器（12）并且馈送提供期望的输出阻抗的源极跟随器电路（14）。晶体（16）从源极跟随器电路（14）的输出耦合回到放大器的输入端（32）。放大器（12）的电压增益和源极跟随器电路（14）的输出阻抗是可独立选择的，以提供振荡器（10）快速启动的最佳跨导。当振荡达到阈值时，跨导可以减少以节省功率。

7. 发明授权

US10869519B2 MEMS valve actuator system and method 有权
公开(公告)号：US10869519B2
公开(公告)日：2020-12-22
申请号：US15648021
申请日：2017-07-12
申请人： Raymond Louis Barrett, Jr.
发明人： Raymond Louis Barrett, Jr.
IPC分类号： A42B3/12 , F16K31/00 , F16K99/00 , A42B3/28 , A61B5/00 , A61B5/11
CPC分类号： A42B3/122 , A42B3/121 , A42B3/281 , A61B5/4064 , F16K31/004 , F16K99/0048 , A61B5/002 , A61B5/1114 , A61B5/6803 , A61B2503/10 , A61B2562/0219 , A61B2562/04 , F16K2099/0082
摘要： A micro-electro-mechanical (MEMS) exhaust valve-based impact attenuating fluid filled cell for use in cushioning impact and decelerating of a wearer's body portion (e.g. head, shoulder, torso, etc.) after an impact. In combination with the use of accelerometers, pressure sensors, location and other electronics supply signals to a microcontroller, the controlled opening/closing of said exhaust valve (resulting in the expelling of said fluids with an optional combination with cell refill means) when certain parameters exceed a threshold. Individuals who engage in activities that carry a risk of injury to the head from impact in the normal course of the activity could, in combination with regular exams, benefit from a system that produces and updates a kinematic 3D model of the individual's head, including brain matter, cerebrospinal fluid paths, arterial and venous blood flow pathways, as well as the skull, supporting connective tissues and other biological structures in the head suitable for interaction with exogenous stimuli prepared from hypothetical or actual recorded impact events.

8. 发明授权

US5841822A Band-pass sigma-delta converter and commutating filter therefor 失效
标题翻译：带通Σ-Δ转换器和换向滤波器
公开(公告)号：US5841822A
公开(公告)日：1998-11-24
申请号：US982179
申请日：1997-12-01
申请人： James Gregory Mittel , Raymond Louis Barrett, Jr. , Walter Davis
发明人： James Gregory Mittel , Raymond Louis Barrett, Jr. , Walter Davis
IPC分类号： H03H19/00 , H03M3/02 , H04B1/10
CPC分类号： H03H19/004 , H03M3/404 , H03M3/43 , H03M3/454
摘要： A communication receiver (600) utilizes a band-pass sigma-delta converter (100) for receiving a radio signal. The band-pass sigma-delta converter (100) includes a comparator (106) coupled to an adder-filter (101) for making a comparison between a predetermined reference level (110) and an intermediate signal (125), and for generating a comparison result signal (114) responsive to the comparison. A storage element (108) is used for storing the comparison result signal (114) for a predetermined delay period, thereby producing a clocked output signal (118). The adder-filter (101) is coupled to an analog signal (103) and to the clocked output signal (118) for subtracting the clocked output signal (118) from the analog signal (103) to produce a difference signal (120) that is filtered by a commutating filter (400) for generating the intermediate signal (125) responsive to the difference signal (120).
摘要翻译：通信接收机（600）利用带通Σ-Δ转换器（100）来接收无线电信号。带通Σ-Δ转换器（100）包括耦合到加法器滤波器（101）的比较器（106），用于在预定参考电平（110）和中间信号（125）之间进行比较，并且用于产生比较结果信号（114）响应于比较。存储元件（108）用于在预定的延迟周期内存储比较结果信号（114），从而产生时钟输出信号（118）。加法器滤波器（101）耦合到模拟信号（103）和时钟输出信号（118），用于从模拟信号（103）中减去时钟输出信号（118）以产生差分信号（120），其中，通过换向滤波器（400）进行滤波，用于响应差分信号（120）产生中间信号（125）。

9. 发明授权

US5640681A Boot-strapped cascode current mirror 失效
标题翻译：引导带状共源共栅电流镜
公开(公告)号：US5640681A
公开(公告)日：1997-06-17
申请号：US149886
申请日：1993-11-10
申请人： Raymond Louis Barrett, Jr. , Barry Wayne Herold , Grazyna A. Pajunen
发明人： Raymond Louis Barrett, Jr. , Barry Wayne Herold , Grazyna A. Pajunen
IPC分类号： G05F3/26 , H04B7/00 , G05F3/16
CPC分类号： G05F3/262
摘要： A cascode current mirror circuit includes a cascode connected input stage (401) that operates to conduct an input current (400) in response to an input voltage of an input signal coupled to an effective transconductance of the cascode connected input stage (401). An input mirroring transistor (404) operates to control a mirror reference current (406) in response to the input voltage of the input signal. A diode connected transistor (409) coupled to a second control node of the cascode connected input stage (410) generates a control bias proportional to the mirror reference current (406) and to the input signal. A cascode connected output stage (411) has a first control node (413) coupled to the input signal and a second control node (414) coupled to the diode connected transistor (409) and the second control node (410) of the cascode connected input stage (401) for establishing an output current (415) that is substantially equivalent to the input current (400).
摘要翻译：共源共栅电流镜电路包括共源共栅连接的输入级（401），其操作以响应耦合到共源共栅连接的输入级（401）的有效跨导的输入信号的输入电压来传导输入电流（400）。输入镜像晶体管（404）用于响应于输入信号的输入电压来控制镜参考电流（406）。耦合到共源共栅连接的输入级（410）的第二控制节点的二极管连接晶体管（409）产生与镜参考电流（406）成比例的控制偏置和输入信号。级联连接的输出级（411）具有耦合到输入信号的第一控制节点（413）和耦合到二极管连接的晶体管（409）的第二控制节点（414）和连接的共源共栅的第二控制节点（410）输入级（401），用于建立基本上等于输入电流（400）的输出电流（415）。

10. 发明申请

US20170311668A1 MEMS Valve Actuator System and Method 审中-公开
公开(公告)号：US20170311668A1
公开(公告)日：2017-11-02
申请号：US15648021
申请日：2017-07-12
申请人： Raymond Louis Barrett, JR.
发明人： Raymond Louis Barrett, JR.
IPC分类号： A42B3/12 , A42B3/28 , A61B5/00 , F16K31/00
CPC分类号： A42B3/122 , A42B3/121 , A42B3/281 , A61B5/002 , A61B5/1114 , A61B5/4064 , A61B5/6803 , A61B2503/10 , A61B2562/0219 , A61B2562/04 , F16K31/004 , F16K99/0048 , F16K2099/0082
摘要： A micro-electro-mechanical (MEMS) exhaust valve-based impact attenuating fluid filled cell for use in cushioning impact and decelerating of a wearer's body portion (e.g. head, shoulder, torso, etc.) after an impact. In combination with the use of accelerometers, pressure sensors, location and other electronics supply signals to a microcontroller, the controlled opening/closing of said exhaust valve (resulting in the expelling of said fluids with an optional combination with cell refill means) when certain parameters exceed a threshold. Individuals who engage in activities that carry a risk of injury to the head from impact in the normal course of the activity could, in combination with regular exams, benefit from a system that produces and updates a kinematic 3D model of the individual's head, including brain matter, cerebrospinal fluid paths, arterial and venous blood flow pathways, as well as the skull, supporting connective tissues and other biological structures in the head suitable for interaction with exogenous stimuli prepared from hypothetical or actual recorded impact events.

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