公开(公告)号：US3881961A

公开(公告)日：1975-05-06

申请号：US38511873

申请日：1973-08-02

Applicant: MOTOROLA INC

Inventor： NATION MELVIN STANLEY

IPC: H01M2/10 ,  H05K3/30 ,  H01M1/04

CPC classification number: H01M2/1055 ,  H05K3/301

Abstract: A self locking battery housing includes a body portion and a door having a living hinge and contacts mounted near the hinge for making electrical contact between the body portion and the door. Terminals are provided on the body portion for mounting the housing and electrically contacting the battery, and provisions are made to contact the battery for charging purposes through the door.

Abstract translation: 自锁电池壳体包括主体部分和具有活动铰链的门和安装在铰链附近的触点，用于在主体部分和门之间进行电接触。 端子设置在主体部分上，用于安装壳体并电接触电池，并且通过门将设备与电池接触以进行充电。

公开(公告)号：US3881179A

公开(公告)日：1975-04-29

申请号：US28313172

申请日：1972-08-23

Applicant: MOTOROLA INC

Inventor： HOWARD JR WILLIAM G

IPC: H01L21/00 ,  H01L21/74 ,  H01L29/866 ,  H01L9/00

CPC classification number: H01L29/866 ,  H01L21/00 ,  H01L21/74

Abstract: The zener diode structure is fabricated by standard monolithic processes and provides a constant reference voltage for driving a high impedance load. The diode includes an anode element provided by P-type diffusion into an epitaxial layer. Electrical connections between the anode and the surface terminals of the device are provided by ''''base'''' diffusion. A cathode element is formed by an ''''emitter'''' diffusion which extends from the surface of the epitaxial layer, into the base diffusion, and borders the anode to form an anode-to-cathode junction. Since the base diffusion has a higher resistivity than the anode-to-cathode junction, buried breakdown occurs at the anode-to-cathode junction. The drive current for the zener is conducted by a path between a first anode terminal, which is connected to the base diffusion, and the cathode terminal. The constant reference voltage is developed between a second anode terminal, which is also connected to the base diffusion, and the cathode terminal.

Abstract translation: 齐纳二极管结构通过标准单片工艺制造，并为驱动高阻抗负载提供恒定的参考电压。 二极管包括通过P型扩散提供给外延层的阳极元件。 阳极和器件的表面端子之间的电连接由“基极”扩散提供。 阴极元件由从外延层的表面延伸到基底扩散中的“发射极”扩散形成，并与阳极接合以形成阳极至阴极结。 由于基极扩散具有比阳极至阴极结更高的电阻率，所以在阳极至阴极结处发生掩埋击穿。 用于齐纳二极管的驱动电流由连接到基极扩散部的第一阳极端子与阴极端子之间的路径进行。 恒定参考电压在也连接到基极扩散的第二阳极端子和阴极端子之间产生。

公开(公告)号：US3879665A

公开(公告)日：1975-04-22

申请号：US37459473

申请日：1973-06-28

Applicant: MOTOROLA INC

Inventor： CARLOW EARL FRED ,  NASH HAROLD GARTH

IPC: H04L27/156 ,  H04L27/14

CPC classification number: H04L27/1563

Abstract: A digitally implemented frequency-shift keying receiver receives an input periodic oscillation signal of a first frequency, designated a binary ''''1'''' and of a second frequency, designated a binary ''''0''''. A unidirectional pulse is generated each time the input signal passes through a reference voltage, either positive going or negative going. The time between pairs of these pulses is measured by starting a free running counter with a first pulse and by stopping and re-starting the counter with a second pulse. If the time between two of these pulses is sufficiently long, an up-down counter counts in one direction and if the time is sufficiently short, it counts in the other direction. The up-down counter, by providing a prescribed number of counts in either direction to reach a threshold, effectively filters the input signal. An output stage, responsive to the threshold of the updown counter, provides either a binary 1 or a binary 0.

Abstract translation: 数字实现的频移键控接收机接收指定为二进制“1”的第一频率的输入周期性振荡信号和指定为二进制“0”的第二频率的输入周期性振荡信号。 每当输入信号通过参考电压（正向或负向）时，都会产生单向脉冲。 这些脉冲对之间的时间通过用第一脉冲启动自由运行的计数器并通过用第二脉冲停止和重新启动计数器来测量。 如果这两个脉冲之间的时间足够长，则向上计数器在一个方向上计数，如果时间足够短，则计数在另一个方向上。 升降计数器通过在任一方向上提供规定数量的计数以达到阈值，有效地过滤输入信号。 响应于升降计数器的阈值的输出级提供二进制1或二进制0。

公开(公告)号：US3879303A

公开(公告)日：1975-04-22

申请号：US41205873

申请日：1973-11-02

Applicant: MOTOROLA INC

Inventor： BOWMAN RONALD R

IPC: C23F1/40 ,  H01L21/00 ,  H01L23/482 ,  H01L29/732 ,  C09K3/00 ,  C23F1/02

CPC classification number: H01L29/7325 ,  C23F1/40 ,  H01L21/00 ,  H01L23/482 ,  H01L24/05 ,  H01L2224/04042 ,  H01L2224/45144 ,  H01L2224/4847 ,  H01L2924/00

Abstract: A germanium mesa transistor is fabricated having an epitaxially grown base region and an aluminum alloy emitter in the epitaxially grown layer spaced from the collector junction, and having a gold-comprising base electrode surrounding the emitter and closely spaced therefrom. The gold contact is formed by photolithographic and selective etching techniques, followed by the formation of the aluminum emitter, which is also formed by photolithographic and selective etching techniques. A key step is the selective removal of the aluminum from the germanium wafer without disturbing the gold contact.

Abstract translation: 制造的锗台面晶体管具有外延生长的基极区域和与集电极结合部分间隔的外延生长层中的铝合金发射体，并且具有围绕发射极并与其紧密间隔的含金基底电极。 金接触通过光刻和选择性蚀刻技术形成，随后形成铝发射体，其也通过光刻和选择性蚀刻技术形成。 关键的步骤是从锗晶片中选择性地去除铝，而不会干扰金接触。

公开(公告)号：US3878467A

公开(公告)日：1975-04-15

申请号：US36761073

申请日：1973-06-06

Applicant: MOTOROLA INC

Inventor： MANSON PETER ST C

IPC: H04B1/26 ,  H03D3/04 ,  H03J3/18 ,  H03J7/08 ,  H03J7/26 ,  H03K7/06 ,  H04B1/16 ,  H04B1/06

CPC classification number: H03J7/08 ,  H03D3/04 ,  H03J3/185 ,  H03J7/26 ,  H03K7/06

Abstract: An AM and FM receiver wherein the local oscillator of the AM receiver is tuned by manual means, such as pushbuttons, and the variable frequency AC signal is taken from the local oscillator, converted to a DC signal by a discriminator and utilized to tune variable capacitance diodes in the front end of the FM receiver. The DC signal may also be utilized to control variable capacitance diodes in the front end of the AM receiver.

Abstract translation: AM和FM接收机，其中AM接收机的本地振荡器由诸如按钮的手动装置调谐，并且可变频率AC信号取自本地振荡器，由鉴频器转换成DC信号，并用于调谐可变电容 FM接收机前端的二极管。 DC信号也可用于控制AM接收机前端的可变电容二极管。

公开(公告)号：US3877001A

公开(公告)日：1975-04-08

申请号：US43291974

申请日：1974-01-14

Applicant: MOTOROLA INC

Inventor： BOGUT HENRY A ,  LEONARD JEROME C

IPC: G01R19/165 ,  G01R31/36 ,  G08B21/00

CPC classification number: G01R31/3682 ,  G01R19/16542

Abstract: A semiconductor switch connecting the battery to a light emitting diode, operative for a predetermined period of time in response to the operation of a transceiver power switch if the battery is above a predetermined value and operative in response to the operation of a transmit switch in a constant "on" mode if the battery voltage is above the predetermined value and in a periodic mode if the battery voltage is low.

公开(公告)号：US3873971A

公开(公告)日：1975-03-25

申请号：US41155273

申请日：1973-10-31

Applicant: MOTOROLA INC

Inventor： EN JOHN

IPC: H04L1/00 ,  G06F11/12

CPC classification number: H04L1/0059

Abstract: A rate one half random error correcting convolutional coding system capable of correctng two out of any twelve information and parity bits having an encoder comprising a six stage shift register and a modulo 2 adder connected to the shift register for combining the first, fourth, fifth and sixth information bits present in the register to generate parity bits which are subsequently interleaved with the information bits. A decoder employing another six stage shift register generates syndrom bits by combining parity bits generated from the received information with the received parity bits. The syndrome bits are applied to a six stage syndrome register which is coupled, both directly and via other modulo 2 adder, to a majority logic circuit which provides a correcting signal when the number of ones applied thereto exceeds a predetermined number.

Abstract translation: 一种速率一半随机纠错卷积编码系统，其能够校正具有编码器的任何十二个信息和奇偶校验位中的两个，所述编码器包括连接到移位寄存器的六级移位寄存器和模二加法器，用于组合第一，第四，第五和第五 存在于寄存器中的第六信息位以产生随后与信息比特交织的奇偶校验位。 采用另外六级移位寄存器的解码器通过将从接收到的信息产生的奇偶校验位与接收的奇偶校验位组合来产生校正位。 校正子位被应用于六级校正器寄存器，其被直接地和经由其他模2加法器耦合到多数逻辑电路，当被施加到其上的数量超过预定数量时，提供校正信号。

公开(公告)号：US3873186A

公开(公告)日：1975-03-25

申请号：US39851773

申请日：1973-09-18

Applicant: MOTOROLA INC

Inventor： RITCHIE KIM

IPC: G09F9/46 ,  C09K19/22 ,  G02F1/1347 ,  G04G9/00 ,  G02F1/36

CPC classification number: G02F1/1347 ,  C09K19/22 ,  G04G9/0035

Abstract: A liquid crystal display with an extended temperature range has a pair of serially aligned cells. One of the cells contains a liquid crystal material having a nematic temperature range extending from at least -20*C to 60*C while the liquid crystal material in the other cell has a nematic temperature range from at least 60*C to 100*C so that normal expected temperature ranges are covered. The two cells are defined by first, second and third plates which are secured in spaced parallel relation. The second or intermediate plate is a light transmitting plate which has electrodes on opposite surfaces in contact with each of the liquid crystal materials. The first and third plates have electrodes on only one side forming the second electrode for each of the two cells, one of said plates being reflective and the other transmissive.

Abstract translation: 具有扩展温度范围的液晶显示器具有一对串行对准的单元。 其中一个电池包含具有从至少-20℃至60℃延伸的向列温度范围的液晶材料，而另一个电池中的液晶材料具有至少60℃至100℃的向列温度范围 以便涵盖正常的预期温度范围。 两个单元由以隔开的平行关系固定的第一，第二和第三板限定。 第二或中间板是在与每个液晶材料接触的相对表面上具有电极的透光板。 第一和第三板在仅一个侧面上具有形成用于两个单元中的每一个的第二电极的电极，所述板中的一个是反射的，另一个是透射的。

公开(公告)号：US3871022A

公开(公告)日：1975-03-11

申请号：US42129173

申请日：1973-12-03

Applicant: MOTOROLA INC

Inventor： WILCOX MILTON E

IPC: H03D1/22 ,  H03G3/20 ,  H04N5/455 ,  H04N9/50

CPC classification number: H03G3/3068 ,  H03D1/229 ,  H04N5/455

Abstract: The protection circuit, which prevents an undesired synchronous demodulator output signal state, includes an electron control device having a first control electrode connected to a voltage reference supply terminal and a second control electrode connected to the input terminal of the synchronous demodulator. A second circuit is connected between the output terminal of the electron control device and the output terminal of the synchronous demodulator. The electron control device is rendered conductive in response to the magnitude of the input signal of the synchronous demodulator exceeding a first predetermined threshold level which is less than a second threshold level at which the demodulator provides the undesired output signal state. The second circuit responds to the electron control device being rendered conductive to provide a desired output signal state at the output terminal of the synchronous demodulator; even though, the magnitude of the input signal exceeds the second threshold level.

Abstract translation: 防止不期望的同步解调器输出信号状态的保护电路包括具有连接到电压基准电源端子的第一控制电极和连接到同步解调器的输入端子的第二控制电极的电子控制装置。 第二电路连接在电子控制装置的输出端子和同步解调器的输出端子之间。 电子控制装置响应于同步解调器的输入信号的大小超过小于解调器提供不需要的输出信号状态的第二阈值电平的第一预定阈值电平而导通。 第二电路响应电子控制装置导通，以在同步解调器的输出端提供期望的输出信号状态; 即使输入信号的幅度超过第二阈值电平。

公开(公告)号：US3869724A

公开(公告)日：1975-03-04

申请号：US43600174

申请日：1974-01-23

Applicant: MOTOROLA INC

Inventor： BARA EDWIN S

IPC: G11B5/55 ,  G11B15/26 ,  G11B21/08 ,  G11B5/56

CPC classification number: G11B15/26 ,  G11B5/5504

Abstract: A tape head indexing assembly for a cartridge tape player having a magnetic tape head mounted for movement with respect to the tape tracks on a magnetic recording tape in a cartridge received in the player, a rotatable capstan for driving the tape through the cartridge and a flywheel mounted on the capstan to impart rotation thereto, includes a rotatable cam having a plurality of cam surfaces, each of which corresponds to one of the recording tracks on the tape and a lever arm mounted adjacent the tape head for pivotal and longitudinal movement. One end of the lever arm is positioned for engaging the cam to drive the latter rotatably to index the tape head. The opposite end is positioned for engagement with the rotating flywheel. An actuator, taking the form of an electromagnet or a mechanical arm, causes the lever arm to be pivoted so that the opposite end of the lever arm is engaged by the flywheel and driven longitudinally. Movement of the lever arm as described drives a pawl at the one end thereof into engagement with a ratchet wheel formed integrally with the cam to rotate the latter. A cam follower coupled to the tape head and riding on the cam surfaces of the cam imparts movement to the tape head for the repositioning thereof with respect to the tape tracks.

Abstract translation: 一种用于盒式磁带播放器的磁带索引组件，其具有安装成相对于在接收在播放器中的盒中的磁记录带上的磁带轨迹移动的磁带头，用于通过盒驱动磁带的可旋转主导轴和飞轮 安装在主导轴上以使其旋转，包括具有多个凸轮表面的可旋转凸轮，每个凸轮表面对应于带上的记录轨道之一，以及安装在磁带头附近的用于枢转和纵向运动的杠杆臂。 杠杆臂的一端被定位成用于接合凸轮以驱动该凸轮以可旋转地索引带头。 相对端定位成与旋转的飞轮接合。 采用电磁体或机械臂形式的致动器使得杠杆臂枢转，使得杠杆臂的相对端由飞轮接合并纵向驱动。 如上所述，杠杆臂的运动将棘爪在其一端处与与凸轮一体形成的棘轮啮合，以使其旋转。 耦合到带头并且骑在凸轮的凸轮表面上的凸轮从动件将运动提供给磁带头，用于相对于磁带重新定位。