公开(公告)号：US3754152A

公开(公告)日：1973-08-21

申请号：US3754152D

申请日：1971-11-03

Applicant: BULOVA WATCH CO INC

Inventor： KOEHLER D ,  MUTTER W

IPC: G04G3/00 ,  G04F5/06 ,  H03B1/00 ,  H03B5/32 ,  H03K3/283 ,  H01V7/00

CPC classification number: H03K3/283 ,  G04F5/066 ,  H03B2201/01 ,  H03J2200/10

Abstract: A capacitor unit adapted to adjust the frequency of a crystalcontrolled oscillator in incremental steps, the oscillator serving as a frequency standard for an electronic timepiece. The unit is constituted by a bank of capacitors whose respective values fall into a binary series, each capacitor being associated with a switch arranged to connect the capacitor in parallel relation to the other capacitors in the bank, whereby the reactance presented by the unit may be varied incrementally by selective operation of the switches to create a reactance range whose lowest value is determined by the smallest capacitor alone, whose highest value is determined by the sum of all the capacitors in the bank, and whose intermediate values are determined by the capacitors singly or in shunt combinations thereof.

Abstract translation: 一种电容器单元，适于以增量步长调整晶体振荡器的频率，该振荡器用作电子钟表的频率标准。 该单元由一组电容器构成，其各自的值分为二进制序列，每个电容器与被布置为将电容器与该组中的其它电容器并联连接的开关相关联，由此该单元所呈现的电抗可以是 通过开关的选择性操作逐渐变化以产生电抗范围，其最小值由最小电容器单独确定，其最大值由该组中的所有电容器的总和确定，并且其中间值由电容器单独确定 或其分流组合。

公开(公告)号：US3748845A

公开(公告)日：1973-07-31

申请号：US3748845D

申请日：1971-12-02

Applicant: BULOVA WATCH CO INC

Inventor： MUTTER W ,  GRUNER G

IPC: G04C3/00 ,  G04C11/00

CPC classification number: G04C11/00 ,  G04C3/008

Abstract: A replaceable module incorporating the electronic systems for a compact crystal-controlled watch wherein the high-frequency of a quartz crystal is scaled down to produce low-frequency pulses. These pulses actuate a time display by means of a tuning fork motor whose sole function is to turn the hands of the watch. The module is constituted by an oscillator circuit, the output of which is fed to a multi-stage frequency divider, the oscillator circuit and divider being embodied in a single package containing integrated circuitry. The module is joined to an incrementallyadjustable capacitor unit for tuning the oscillator circuit. Extending from the module are five terminal lugs and one connecting tab, the first two providing support for and connections to a quartz crystal assembly mounted below the tuning unit. The second and third lugs are connectable to a power cell, while the fifth lug which yields the system out-put pulses, is connectable to the tuning fork motor. The tab serves to connect the tuning unit to the oscillator circuit.

Abstract translation: 一种可替代模块，其结合用于紧凑型晶体控制表的电子系统，其中石英晶体的高频被缩小以产生低频脉冲。 这些脉冲通过音叉电动机驱动时间显示，音叉电动机的唯一功能是转动手表的手。 该模块由振荡器电路构成，其输出端被馈送到多级分频器，振荡器电路和除法器体现在包含集成电路的单个封装中。 该模块连接到增量可调电容器单元，用于调谐振荡器电路。 从模块延伸的是五个接线端子和一个连接接头，前两个为安装在调谐单元下方的石英晶体组件提供支撑和连接。 第二和第三接线片可连接到电源单元，而产生系统输出脉冲的第五接线片可连接到音叉电机。 该选项卡用于将调谐单元连接到振荡器电路。