公开(公告)号：US4153876A

公开(公告)日：1979-05-08

申请号：US791614

申请日：1977-04-27

Applicant: Michael J. Cochran

Inventor： Michael J. Cochran

IPC: H03D1/24 ,  H03D7/00 ,  H03H15/02 ,  H03H17/00 ,  H03L7/091 ,  H03L7/18 ,  H03L7/183 ,  H04B1/40 ,  H04W84/00

CPC classification number: H04W84/00 ,  H03D1/24 ,  H03D7/00 ,  H03H15/02 ,  H03L7/091 ,  H03L7/183 ,  H04B1/40

Abstract: Disclosed is a radio system comprising mixing means for simultaneously receiving electronic input signals consisting of a plurality of non-overlapping frequency bands and first clocking signals having a first selectable frequence. The mixing means frequency shifts the input signals by the first selectable frequency. A charge transfer device transversal filter has inputs coupled to receive the frequency shifted signals. The charge transfer device filters one frequency band from the frequency shifted signals and further frequency shifts the selected band in response to a second clocking signal. Demodulator means is coupled to the output of the charge transfer device filter for demodulating the selected one further downshifted frequency band.

Abstract translation: 公开了一种无线电系统，包括混合装置，用于同时接收由多个非重叠频带组成的电子输入信号和具有第一可选择频率的第一时钟信号。 混合装置将输入信号频率移位第一可选频率。 电荷转移装置横向滤波器具有耦合以接收频移信号的输入。 电荷转移装置从频移信号滤波一个频带，并响应于第二时钟信号进一步频移所选频带。 解调器装置耦合到电荷转移装置滤波器的输出端，用于解调所选择的一个进一步降低的转换频带。

公开(公告)号：US4149605A

公开(公告)日：1979-04-17

申请号：US888639

申请日：1978-03-21

Applicant: Erhard Mettler ,  Hans Frey

Inventor： Erhard Mettler ,  Hans Frey

IPC: G01G23/18 ,  G01G3/02 ,  G01G3/16 ,  G01G7/04 ,  G01G23/37 ,  H03H15/02 ,  G01G23/14

CPC classification number: H03H15/02 ,  G01G23/3721 ,  G01G3/02 ,  G01G3/16 ,  G01G7/04 ,  Y10S177/03

Abstract: In known scales, switching from a fine to a course measurement range automatically decreases the resolution by at least one place. Since the change in range takes place in dependence upon the total weight applied to the scale, displayed values after taring still lack at least one significant digit relative to the fine indication. In the present invention this digit is reactivated automatically upon activation of the tare key if the weight after taring is less than the predetermined fine range limiting weight.

Abstract translation: 在已知的刻度上，从精细切换到课程测量范围自动将分辨率降低至少一个地方。 由于范围的变化取决于施加到刻度的总重量，所以在去皮之后的显示值仍然相对于精细指示缺少至少一个有效数字。 在本发明中，如果皮重之后的重量小于预定的精细范围限制重量，则在激活皮重时自动重新启用该数字。

公开(公告)号：US4145676A

公开(公告)日：1979-03-20

申请号：US788779

申请日：1977-04-19

Applicant: Roger Benoit-Gonin ,  Jean L. Berger ,  Sylvain Fontanes

Inventor： Roger Benoit-Gonin ,  Jean L. Berger ,  Sylvain Fontanes

IPC: H01L21/339 ,  H01L29/76 ,  H01L29/762 ,  H01L29/768 ,  H01L29/772 ,  H01L29/78 ,  H03H15/02 ,  H03H7/28 ,  G11C19/28 ,  H01L27/10

CPC classification number: H01L29/76808 ,  H03H15/02

Abstract: An input stage for a transversal charge transfer filter, which suppresses parasitic image frequencies. It comprises two parallel channels to which the input signal is applied simultaneously. Sampling of the signal is performed in each channel with a periodicity Te, and a relative phase-shift of Te/2. The two samples are then added in order to eliminate components having periodicities in the neighborhood of Te. The present invention relates to low-pass filters using the phenomenon of electrical charge transfer occurring in a semiconductor. It relates more particularly to an input stage for this kind of CTD (Charge Transfer Device) filter, which attenuates parasitic frequencies. The design of CTD low-pass filters, often referred to as transversal filters, poses a classic problem due to the fact that the input stage is a sampling stage. In other words, when the input signal contains a component of frequency Fs close to the sampling frequency Fe, by a process of frequency mixing, two parasitic signals at the image frequencies Fe + Fs and Fe - Fs are created. Since we are concerned with a low-pass filter, the top image frequency (Fe + Fs) is automatically eliminated but the bottom image frequency (Fe - Fs) can be transmitted by the filter and appear in the output signal if the condition Fe - Fs

Abstract translation: 用于横向电荷转移滤波器的输入级，其抑制寄生图像频率。 它包括同时施加输入信号的两个并行通道。 在每个通道中以周期Te执行信号的采样，并且执行Te / 2的相对相移。 然后添加两个样品以消除在Te附近具有周期性的组分。

公开(公告)号：US4140975A

公开(公告)日：1979-02-20

申请号：US791256

申请日：1977-04-27

Applicant: Michael J. Cochran ,  Edward R. Caudel

Inventor： Michael J. Cochran ,  Edward R. Caudel

IPC: H03D1/24 ,  H03D7/00 ,  H03H15/02 ,  H03H17/00 ,  H03L7/091 ,  H03L7/18 ,  H03L7/183 ,  H04B1/40 ,  H04W84/00 ,  H04B1/38

CPC classification number: H04W84/00 ,  H03D1/24 ,  H03D7/00 ,  H03H15/02 ,  H03L7/091 ,  H03L7/183 ,  H04B1/40

Abstract: A programmable filter module includes a charge transfer device bandpass filter and a phase locked loop. The bandpass filter has a plurality of passbands dependent upon the frequency of a clocking signal. The phase locked loop receives a reference signal of one frequency and in response thereto, generates the clocking signals in the form N1 divided by N2 times the frequency of the reference signal, where N1 and N2 are programmable integers.

Abstract translation: 可编程滤波器模块包括电荷转移装置带通滤波器和锁相环。 带通滤波器具有取决于时钟信号的频率的多个通带。 锁相环接收一个频率的参考信号，并响应于此，产生N1的频率信号除以参考信号频率的N2倍，其中N1和N2是可编程整数。

公开(公告)号：US4132950A

公开(公告)日：1979-01-02

申请号：US791629

申请日：1977-04-27

Applicant: Michael J. Cochran ,  Edward R. Caudel

Inventor： Michael J. Cochran ,  Edward R. Caudel

IPC: H03D1/24 ,  H03D7/00 ,  H03H15/02 ,  H03H17/00 ,  H03L7/091 ,  H03L7/18 ,  H03L7/183 ,  H04B1/40 ,  H04W84/00

CPC classification number: H04W84/00 ,  H03D1/24 ,  H03D7/00 ,  H03H15/02 ,  H03L7/091 ,  H03L7/183 ,  H04B1/40

Abstract: A clarifying radio receiver has a charge transfer device filter which is coupled to receive input signals consisting of a plurality of frequency bands lying respectively within a plurality of non-overlapping frequency channels. The filter simultaneously receives clocking signals, and has a plurality of spaced apart passbands which shift in frequency dependent upon the frequency of the clocking signals. Clocking means generate the clocking signals with an incrementally adjustable frequency. The increments are smaller than the width of the channels thereby permitting a selected one of the filter passbands to be precisely aligned about a fixed reference frequency.

公开(公告)号：US4126836A

公开(公告)日：1978-11-21

申请号：US782753

申请日：1977-03-30

Applicant: James E. Carnes ,  Robert H. Dawson

Inventor： James E. Carnes ,  Robert H. Dawson

IPC: G11C27/04 ,  H01L27/105 ,  H03H15/02 ,  H03H7/28 ,  G11C19/28 ,  H01L27/10 ,  H03K17/60

CPC classification number: H03H15/02 ,  G11C27/04 ,  H01L27/1057

Abstract: An arrangement of charge transfer devices comprising a main signal transfer path defined by first and second sets of charge transfer electrodes, and an auxiliary path independent of the main path including a predetermined number of electrodes. Capacitances are respectively associated with the electrodes forming the first and second sets of electrodes of the main path, and with the electrodes of the auxiliary path. The electrodes of the auxiliary path are connected to the one of the sets of electrodes of the main channel to establish a desired relationship (e.g., balance) between the capacitances of the first and second sets of electrodes.

Abstract translation: 电荷转移装置的布置包括由第一和第二组电荷转移电极限定的主信号传输路径，以及独立于包括预定数量的电极的主路径的辅助路径。 电容分别与形成主路径的第一和第二组电极的电极以及辅助路径的电极相关联。 辅助路径的电极连接到主通道的一组电极，以在第一和第二组电极的电容之间建立期望的关系（例如平衡）。

公开(公告)号：US4123733A

公开(公告)日：1978-10-31

申请号：US661151

申请日：1976-02-25

Applicant: Raymond Poirier

Inventor： Raymond Poirier

IPC: G11C27/04 ,  H03H15/02 ,  H03H7/28 ,  G11C27/02 ,  H01L27/10 ,  H01L29/10

CPC classification number: H03H15/02 ,  G11C27/04

Abstract: A transversal filter utilizing a double tapped delay line, is provided. Input samples of analogue signals are successively introduced into a charge transfer device comprising two tapped delay lines using split electrodes. Tap weights of both polarities are provided by collecting portions of split electrodes and summed on a single bus bar connected to a reading system delivering filtered signals.

Abstract translation: 提供了利用双抽头延迟线的横向滤波器。 模拟信号的输入样本被连续地引入到包括使用分离电极的两个抽头延迟线的电荷转移装置中。 通过收集分离电极的部分提供两极性的抽头重量，并将其与连接到传送滤波信号的读取系统的单个母线相加。

公开(公告)号：US4041298A

公开(公告)日：1977-08-09

申请号：US625697

申请日：1975-10-24

Applicant: Donald R. Lampe ,  Marvin H. White

Inventor： Donald R. Lampe ,  Marvin H. White

IPC: G06G7/14 ,  G06G7/16 ,  G06G7/19 ,  G06J1/00 ,  G11C27/04 ,  H01L27/105 ,  H01L29/768 ,  H03H15/02 ,  G06G7/12 ,  H03K5/159

CPC classification number: H03H15/02 ,  G06G7/14 ,  G06G7/16 ,  G06G7/1907 ,  G06J1/00 ,  G11C27/04 ,  H01L27/1057 ,  H01L29/76808 ,  H01L29/76816 ,  H01L29/76891

Abstract: In a charge transfer device (CTD), such as a charge coupled device (CCD), a gate electrode employed for sensing of the charge packet being transferred, or coupled through the device is clocked during one phase of the four-phase clocking and is permitted to float, i.e., be isolated, during a sensing phase of the four-phase clocking. Since the sensor is a gate electrode rather than a diffusion, it presents no obstruction to the propagation of charge down the channel. Since sensing occurs while the electrode is floating, the sensing or readout function does not have any detrimental effect on the propagation of charge down the channel, i.e., it affords a truly non-destructive readout. During a clocking phase in which charge is isolated under a different gate electrode, an attractive voltage clock pulse is applied to the sensor electrode, rendering it attractive. The sensor electrode is then isolated from the clocking source and, in the appropriate succeeding clocking intervals, the charge advances to the well under the sensor electrode. Sensing of the charge then occurs while the electrode remains in its floating condition. Subsequently, a clock pulse is applied to the sensor electrode rendering it repulsive to advance the charge down the CCD channel. The floating clock sensor electrode of this invention is highly advantageous in any application requiring non-destructive readout; an illustrative configuration for non-destructive parallel output (PO) operation of a CCD shift register is disclosed.

Abstract translation: 在诸如电荷耦合器件（CCD）的电荷转移装置（CTD）中，用于感测正在传输或耦合到器件的电荷分组的栅电极在四相时钟的一个阶段被计时，并且是 允许在四相时钟的感测阶段浮动，即隔离。 由于传感器是栅电极而不是扩散，因此它不会阻碍通道下的电荷传播。 由于在电极浮动时发生感应，感测或读出功能对通道下方的电荷传播没有任何有害的影响，即它提供了真正的非破坏性读出。 在电荷在不同的栅电极下隔离的时钟阶段期间，有吸引力的电压时钟脉冲施加到传感器电极，使其具有吸引力。 然后将传感器电极与时钟源隔离，并且在适当的后续时钟间隔中，电荷前进到传感器电极下方的阱。 然后在电极保持在其浮动状态下发生电荷的感测。 随后，将时钟脉冲施加到传感器电极，使其排斥，以将电荷向下推进CCD通道。 本发明的浮动时钟传感器电极在需要非破坏性读出的任何应用中是非常有利的; 公开了用于CCD移位寄存器的非破坏性并行输出（PO）操作的说明性配置。

公开(公告)号：US3999152A

公开(公告)日：1976-12-21

申请号：US516832

申请日：1974-10-21

Applicant: Robert N. Sato ,  Paul R. Prince

Inventor： Robert N. Sato ,  Paul R. Prince

IPC: G11C19/28 ,  H01L29/768 ,  H03H15/02 ,  H03H7/28 ,  H03H7/30

CPC classification number: G11C19/282 ,  H01L29/76866 ,  H03H15/02

Abstract: A charge coupled device to provide a multi-channel selective transversal filter in which a plurality (N) of channels are sequentially processed in a common transversal filter unit to provide a desired transfer function such as a high pass filter. The analog signals from a plurality of sources or channels are fed into the selective transversal filter in serial fashion with the signal from each channel being nondestructively sampled and multiplied by appropriate weighting coefficients as provided by split electrodes separated by (N-1) charge coupled device storage bits. By having storage electrodes between the split electrodes equal to the number of input channels, the split electrodes, which provide the output signals, operate upon signal information from one channel at a time. The displacement current differences between the two halves of all of the split electrodes provide output signals having the desired filter characteristics. The transversal filter devices in accordance with the invention may be operated in a single phase clock mode or in other clock modes. The filter may have a tuning capability to modify the filter response by providing a variation of the clock frequency applied to the electrodes.

Abstract translation: 一种电荷耦合器件，用于提供多通道选择性横向滤波器，其中多个（N）个通道在公共横向滤波器单元中被顺序处理以提供期望的传递函数，例如高通滤波器。 来自多个源或信道的模拟信号以串行方式被馈送到选择性横向滤波器中，来自每个信道的信号被非破坏性采样并乘以由（N-1）电荷耦合器件分开的分裂电极提供的合适的加权系数 存储位。 通过使分离电极之间的存储电极等于输入通道的数量，提供输出信号的分离电极一次对来自一个通道的信号信号进行操作。 所有分裂电极的两半之间的位移电流差异提供具有所需滤波器特性的输出信号。 根据本发明的横向滤波器装置可以以单相时钟模式或其它时钟模式操作。 滤波器可以具有通过提供施加到电极的时钟频率的变化来修改滤波器响应的调谐能力。

公开(公告)号：US3952188A

公开(公告)日：1976-04-20

申请号：US561568

申请日：1975-03-24

Applicant: Harry M. Sloate ,  Arthur M. Cappon

Inventor： Harry M. Sloate ,  Arthur M. Cappon

IPC: H03H15/02 ,  H03K5/159

CPC classification number: H03H15/02

Abstract: A transversal filter which utilizes a charge transfer delay line in combination with a plurality of source-follower pairs or their equivalent to tap the delay line and a plurality of transistors fabricated and disposed to proportionately weight, polarize, error-compensate and differentially sum the tapped signals in a single operation.

Abstract translation: 一种横向滤波器，其利用电荷转移延迟线与多个源 - 跟随器组合或它们的等价物来抽出延迟线，以及制造和布置的多个晶体管，以成比例地权重，极化，误差补偿和差分加法并入 信号在一个操作。