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    • 3. 发明授权
    • Coaxial
    • 同轴“M”开关
    • US5952902A
    • 1999-09-14
    • US267837
    • 1999-03-12
    • Rolf KichRichard L. BennettDavid M. KershnerJames D. Thompson
    • Rolf KichRichard L. BennettDavid M. KershnerJames D. Thompson
    • H01P1/12H01H53/00H01P1/10
    • H01P1/125
    • A coaxial "M" switch having three coaxial input connectors (A, B, C) spaced evenly from each other, and three coaxial output connectors (1, 2, 3) identically arranged. In a cylindrical barrel embodiment (10) the input and output connectors are located at opposite ends of a cylindrical configuration. In one planar embodiment (30), the input and output connectors alternate with each other and define a hexagonal configuration (40). In another planar embodiment, the input connectors (A, B, C) define an inner triangular configuration (70) that is surrounded by the output connectors (1, 2, 3) defining an outer triangular configuration. In each embodiment, reeds are actuated in predetermined configurations to define three switch positions.
    • 具有彼此均匀间隔开的三个同轴输入连接器(A,B,C)的同轴“M”开关和相同地布置的三个同轴输出连接器(1,2,3)。 在圆柱形桶形实施例(10)中,输入和输出连接器位于圆柱形构造的相对端。 在一个平面实施例(30)中,输入和输出连接器彼此交替并且限定六边形配置(40)。 在另一个平面实施例中,输入连接器(A,B,C)限定由限定外三角形构造的输出连接器(1,2,3)包围的内三角形构造(70)。 在每个实施例中,簧片以预定构造被致动以限定三个开关位置。
    • 4. 发明授权
    • Multipart analog message and a response in a communication system
    • 多部分模拟消息和通信系统中的响应
    • US5905448A
    • 1999-05-18
    • US775900
    • 1997-01-02
    • Alain Charles BrianconLeonard G. DeBarrosMario A. RivasRichard L. BennettJohn T. Puma
    • Alain Charles BrianconLeonard G. DeBarrosMario A. RivasRichard L. BennettJohn T. Puma
    • H04W88/02H04Q7/14
    • H04W88/023
    • A communication system in which a multipart analog message (480) is generated by a controller (112) by including an analog part delimiter (440) between successive independent analog parts (420, 431, 432, 433). The multipart analog message (480) is positioned within a synchronous protocol, in which a digital code is included to identify the position of the multipart analog message (480). The synchronous protocol is transmitted by a radio transmitter (202) and received by a selective call receiver (122). The selective call receiver (122) digitally decodes the position of the multipart analog message (480) and begins recovery of the multipart analog message (480) at the position. The selective call receiver (122) recovers the part delimiters (440) and uses them to identify the independent analog parts (420, 431, 432, 433). One of the independent parts, which is a audible response, is selected by the user and used to generate a response.
    • 一种通过在连续的独立模拟部分(420,431,432,433)之间包括模拟部分定界符(440)由控制器(112)生成多部分模拟消息(480)的通信系统。 多部分模拟消息(480)位于同步协议内,其中包括数字代码以识别多部分模拟消息的位置(480)。 同步协议由无线电发射机(202)发送并由选呼接收机(122)接收。 选呼接收机(122)数字地解​​码多部分模拟消息(480)的位置,并开始在该位置恢复多部分模拟消息(480)。 选呼接收机(122)恢复部件定界符(440),并使用它们来识别独立的模拟部件(420,431,432,433)。 用户可以选择独立部分之一,这是一个可听见的响应,用于产生响应。
    • 5. 发明授权
    • Non-uniform Q self amplitude equalized bandpass filter
    • 非均匀Q自振幅均衡带通滤波器
    • US5760667A
    • 1998-06-02
    • US501595
    • 1995-07-12
    • Frederick A. YoungRichard L. BennettKeith N. Loi
    • Frederick A. YoungRichard L. BennettKeith N. Loi
    • H01P1/208H01P7/06
    • H01P1/208
    • A bandpass filter having 4-degrees of freedom includes a plurality of resonant cavities having respective Qs where at least one of the Qs is different. A plurality of main couplings couple successive resonant cavities to establish a main signal path that provides a first degree of freedom for controlling the shape of the filter's frequency response over its passband. A plurality of bridge couplings couple pairs of the resonant cavities so that the cavities are connected in a canonical circuit topology. The bridge couplings provide second and third degrees of freedom for controlling the sharpness of the frequency response 's transition between its passband and stopband and controlling the linearity of its phase, respectively. The cavities' non-uniform Qs provide a fourth degree of freedom for controlling the amplitude of the filter's frequency response in the passband so that the amplitude is within a predetermined tolerance of a desired passband shape.
    • 具有4自由度的带通滤波器包括多个谐振腔,其具有各自的Qs,其中Q中的至少一个不同。 多个主联接器将连续的谐振腔耦合以建立主信号路径,其提供用于在其通带上控制滤波器的频率响应的形状的第一自由度。 多个桥接器耦合成对的谐振腔,使得腔以规范电路拓扑连接。 桥耦合提供了第二和第三自由度,用于控制频率响应在其通带和阻带之间的转变的锐度,并分别控制其相位的线性度。 空腔的不均匀Qs提供了第四自由度来控制滤波器在通带中的频率响应的幅度,使得振幅在预期的通带宽度范围内。
    • 6. 发明授权
    • Tandem cavity thermal compensation
    • 串联腔热补偿
    • US5374911A
    • 1994-12-20
    • US51027
    • 1993-04-21
    • Rolf KichRichard L. Bennett
    • Rolf KichRichard L. Bennett
    • H01P1/208H01P1/30H01P7/06H01P1/207
    • H01P1/208
    • A plural cavity structure (10), suitable for use as a microwave filter (34, 34A, 34B) , has plural cavities (24, 26, 28, 30) disposed within a cylindrical aluminum housing (12) and having a central planar transverse wall (18) including an iris (38) for coupling of electromagnetic power between two successive ones of the cavities (28, 26). The transverse walls are bowed, and peripheral regions of the walls are clamped by metallic rings (66, 68, 70, 72) differing in their coefficients of thermal expansion. Thus, the rings (68, 70) of the inboard transverse walls (16, 20) are formed of titanium having a relatively high coefficient of thermal expansion, while the rings (66, 72) of the outboard transverse walls (14, 22) are formed of INVAR having a relatively low coefficient of thermal expansion. As a result of the differing coefficients of thermal expansion, the outer transverse walls experience greater deformation than do the inner transverse walls with changes in environmental temperature resulting in a net decrease in axial length of both inboard and outboard cavities upon an increase in environmental temperature.
    • 适合用作微波过滤器(34,34A,34B)的多个空腔结构(10)具有设置在圆柱形铝壳体(12)内的多个空腔(24,26,28,30),并且具有中心的平面横向 壁(18)包括用于在两个连续的空腔(28,26)之间耦合电磁功率的虹膜(38)。 横向壁是弯曲的,并且壁的周边区域被其热膨胀系数不同的金属环(66,68,70,72)夹紧。 因此,内侧横向壁(16,20)的环(68,70)由具有相对高的热膨胀系数的钛形成,而外侧横向壁(14,22)的环(66,72) 由具有相对低的热膨胀系数的INVAR形成。 由于不同的热膨胀系数,外部横向壁体的环境温度随环境温度变化而变化较大,因此内壁和外侧空腔的轴向长度随着环境温度的升高而下降。
    • 8. 发明授权
    • Delay equalization detector
    • 延迟均衡检测器
    • US5105439A
    • 1992-04-14
    • US392689
    • 1989-08-11
    • Richard L. BennettVenkat Narayanan
    • Richard L. BennettVenkat Narayanan
    • H04H20/67
    • H04H20/67
    • An improved method for detecting that a facility delay has changed is provided. According to the invention, a facility having a delay that may change is coupled to a transmitter and a receiver. The transmitter is coupled to a first clock that transmits a first signal based on its current reading (the first clock signal) from time to time to the receiver via the facility. The receiver is coupled to a second clock that generates a second signal based on its current reading (the second clock signal) responsive to receiving the first clock signal. In operation, the first clock signal is fed downstream (via the facility having the delay), thereby triggering the second clock signal. The two clock signals are then detected and the difference in the two clock readings computed, thereby forming .DELTA..sub.n. The process is then repeated for successive first and second clock signals, thereby forming .DELTA..sub.n+1. The absolute value of .DELTA..sub.n -.DELTA..sub.n+a is then compared with a predetermined value to determine whether the facility time delay has changed. This method is particularly useful in simulcast broadcast systems.
    • 提供了一种用于检测设施延迟已经改变的改进方法。 根据本发明,具有可能改变的延迟的设施被耦合到发射机和接收机。 发射机耦合到第一时钟,该第一时钟基于其当前读取(第一时钟信号),经由设施不时向接收器发送第一信号。 接收器耦合到第二时钟,其响应于接收到第一时钟信号而基于其当前读数(第二时钟信号)产生第二信号。 在操作中,第一时钟信号被馈送到下游(经由具有延迟的设施),从而触发第二时钟信号。 然后检测两个时钟信号,并计算两个时钟读数的差值,从而形成DELTA n。 然后对连续的第一和第二时钟信号重复该过程,从而形成DELTA n + 1。 然后将DELTA n-DELTA n + a的绝对值与预定值进行比较,以确定设施时间延迟是否改变。 这种方法在联播广播系统中特别有用。