Light modulation device
    1.
    发明公开
    Light modulation device 失效
    一种用于光调制装置。

    公开(公告)号:EP0121401A2

    公开(公告)日:1984-10-10

    申请号:EP84302084.3

    申请日:1984-03-28

    IPC分类号: G02F1/015 G02F1/31 G02B6/10

    摘要: A light modulation device comprises a substrate (1), a substrate layer (2), an optical waveguide layer (3) and buffer layers (4), in that order, formed of either all n-type or all p-type compound semiconductor crystal. In orderto capture the light in the optical waveguide layer, the composition ratio of the compound semiconductor is so determined that the refractive index is at least approximately 0.1% higher in the optical waveguide layers than in the substrate layer and in the buffer layers. Furthermore, the carrier density is low in the optical waveguide layer and in the buffer layers, so that the applied voltage is effectively applied mainly to the optical waveguide layer. Due to the construction of the light modulation device, strict control of the etching process is not required, the device has a low absorption loss of light, and it can be made as a monolithic optical integrated circuit.

    A thermal head
    3.
    发明公开
    A thermal head 失效
    Thermischer Druckkopf。

    公开(公告)号:EP0092005A1

    公开(公告)日:1983-10-26

    申请号:EP82302017.7

    申请日:1982-04-20

    发明人: Shibata, Susumu

    IPC分类号: B41J3/20

    摘要: A thermal head for high speed printing at high temperature comprises a dielectric substrate (10,15), a first thin SiO. layer (20) formed on the substrate, a heater layer (30) on the first SiO 2 layer, conductive layers (40) for coupling the heater layers to an external circuit, a second thin SiO 2 layer (50) on the heater layer, and a protection layer (60) over the second SiO 2 layer. The width of the heater layer is less than 30 µm. The preferable thickness of the SiO 2 layers is less than 2 µm. Preferably, the heater layer is made of tantalum nitride. The presence of the first SiO 2 layer (20) and the narrow width of the heater layer (30) allow the heater to operate at a higher input power, and hence at a higher temperature.

    摘要翻译: 用于在高温下高速印刷的热敏头包括电介质基底(10,15),形成在基底上的第一薄SiO 2层(20),第一SiO 2层上的加热层(30),导电层(40) 用于将加热器层耦合到外部电路,加热器层上的第二薄SiO 2层(50)和在第二SiO 2层上的保护层(60)。 加热层的宽度小于30微米。 SiO 2层的优选厚度小于2μm。 优选地,加热器层由氮化钽制成。 第一SiO 2层(20)的存在和加热器层(30)的窄宽度允许加热器以较高的输入功率运行,因此在较高的温度下运行。

    Telephone answering and message recording system
    4.
    发明公开
    Telephone answering and message recording system 失效
    Telefonanrufbeantwortungs- und Nachrichtenaufzeichnungssystem。

    公开(公告)号:EP0076688A1

    公开(公告)日:1983-04-13

    申请号:EP82305277.4

    申请日:1982-10-04

    发明人: Sagara, Iwao

    IPC分类号: H04M1/64

    CPC分类号: H04M1/6505 H04M1/652

    摘要: A telephone answering and message recording system comprises a microphone (4), an analog-digital converter (6) for converting the analog speech signal of the microphone (4) to a digital signal, a digital memory (M 1 , M 2 , M 3 , M 4 , MEM,-MEM n ) for storing the digital speech signal from the converter (6), a digital-analog converter (7) for re-converting the digital signal of the output of the memory to an analog signal, and a speaker (5) coupled to the output of the digital-analog converter (7). The system also comprises a PB (push button) code receiver (40) for detecting a PB code which is the combination of two frequencies. The operational mode and/or the memory to record or reproduce speech is switched by the particular PB code. The system may operate in a first, fixed answering, mode in which a fixed answer recorded in the memory is transmitted to a remote subscriber or in a second, adaptive oral communication, mode in which speech recorded in the memory can be revised and/or transmitted to a remote subscriber through a telephone line. In the latter mode, two remote persons may communicate with each other through the system even when those two persons do not call the system simultaneously.

    摘要翻译: 一种电话应答和消息记录系统,包括麦克风(4),用于将麦克风(4)的模拟语音信号转换为数字信号的模拟数字转换器(6),数字存储器(M1,M2,M3,M4 ,MEM1-MEMn),用于存储来自转换器(6)的数字语音信号,用于将存储器的输出的数字信号重新转换为模拟信号的数模转换器(7)和扬声器(5) 耦合到数模转换器(7)的输出端。 该系统还包括用于检测作为两个频率的组合的PB代码的PB(按钮)代码接收器(40)。 用于记录或再现语音的操作模式和/或存储器由特定PB代码切换。 该系统可以在其中将记录在存储器中的固定答案发送到远程用户的第一固定应答模式中进行操作,或以第二种适应性口头通信模式操作,其中可以修改记录在存储器中的语音和/或 通过电话线传输到远程用户。 在后一种模式下,即使这两个人不同时呼叫系统,两个远程人员也可以通过系统相互通信。

    Semiconductor integrated circuit comprising a semiconductor substrate and interconnecting layers
    5.
    发明公开
    Semiconductor integrated circuit comprising a semiconductor substrate and interconnecting layers 失效
    半导体集成电路包括半导体衬底和互连层

    公开(公告)号:EP0074804A2

    公开(公告)日:1983-03-23

    申请号:EP82304745.1

    申请日:1982-09-09

    申请人: FUJITSU LIMITED

    IPC分类号: H01L23/52

    摘要: In a semiconductor integrated circuit comprising a semiconductor substrate wherein a plurality of basic cells (16,17) is arranged on the surface of the semiconductor substrate in array fashion, each basic cell has circuit elements including at least a transistor (21) and a plurality of resistors (R 1 -R 4 ). Macro-cells each comprising a plurality of basic cells are constructed by interconnecting the circuit elements in the basic cells (16,17) to form a desired logic circuit, and at least one resistor element of the logic circuit in the macro-cell is constructed by connecting in parallel at least two resistors (R 4 ,R 4 ) belonging to different basic cells so that the freedom of the wiring layout in the macro-cell wiring area is increased and the current distribution between the basic cells is equalized.

    摘要翻译: 在包括半导体衬底的半导体集成电路中,其中多个基本单元(16,17)以阵列方式排列在半导体衬底的表面上,每个基本单元具有电路元件,所述电路元件至少包括晶体管(21)和多个 的电阻器(R1-R4)。 每个包括多个基本单元的宏单元是通过将基本单元(16,17)中的电路元件互连以形成所需的逻辑电路而构成的,并且宏单元中的逻辑电路的至少一个电阻元件被构造 通过并联连接属于不同基本单元的至少两个电阻器(R4,R4),从而增加宏单元布线区域中的布线布局的自由度并且均衡基本单元之间的电流分布。

    Laser scalpel
    6.
    发明公开
    Laser scalpel 失效
    Laserskalpell。

    公开(公告)号:EP0069565A1

    公开(公告)日:1983-01-12

    申请号:EP82303498.8

    申请日:1982-07-02

    IPC分类号: A61B17/36

    CPC分类号: A61B18/22

    摘要: In a laser scalpel apparatus, an optical fibre (5) is used as a light guide, and the optical fibre is guided from a laser unit (1) housing a laser source, to the areas to be irradiated, along a support (4) fixed to the unit 1. The optical fibre is provided with a handpiece (7) embracing its forward end portion. The handpiece is shaped to facilitate the directing of the forward end of the fibre toward the areas to be irradiated. A supporting wire (9) is provided along the support (4) so as to be axially movable. The forward end of the wire is connected to the handpiece and the rear end of the wire is connected to balancing means (10; 11-16) for counterbalancing the weight of the handpiece and the suspended part of the fibre (5), so that the handpiece and the fibre can be easily moved to desired positions during an operation, and can be retained out of the way of the operating area when not in use.

    摘要翻译: 在激光手术刀装置中,使用光纤(5)作为导光体,沿着支撑体(4)将光纤从容纳激光源的激光单元(1)引导到被照射区域, 固定到单元1.光纤设置有包围其前端部分的手持件(7)。 手柄被成形为便于将纤维的前端引向待照射的区域。 支撑线(9)沿着支撑件(4)设置成可轴向移动。 电线的前端连接到手持件,线的后端连接到平衡装置(10; 11-16),用于平衡手持件和纤维(5)的悬挂部分的重量,使得 手机和光纤可以在操作期间容易地移动到期望的位置,并且可以在不使用时保持在操作区域的方式。

    Semiconductor buffer circuit
    9.
    发明公开
    Semiconductor buffer circuit 失效
    半导体缓冲放大器电路。

    公开(公告)号:EP0052504A1

    公开(公告)日:1982-05-26

    申请号:EP81305415.2

    申请日:1981-11-16

    申请人: FUJITSU LIMITED

    IPC分类号: G11C8/00 H03F1/30 H03K19/096

    摘要: A semiconductor buffer circuit which is energisable by a power supply (Vcc,Vss) comprises an input stage (Q1-Q4) for receiving an input clock signal (φ 0 ) and an inverted input clock signal ( φ 0 ). A bootstrap circuit (Q5-Q7), which includes a transistor (Q6) for receiving the output of the input stage circuit, maintains the gate voltage of that transistor at a high level during a standby period. An output circuit (Q8-Q12), including a transistor (Q11) which is switched on and off by the output of the bootstrap circuit, generates an output clock signal (φ 1 ). The circuit is characterised by a current leak circuit (X) which maintains, during the standby period, the voltage of a point (N2) in the semiconductor circuit which is charged during the standby period to a level corresponding to the voltage (Vcc) of the power source. A delay in the output clock signal, which is caused by a fluctuation in the voltage of the power supply during the standby period, is thereby reduced, so that the circuit can be used for fast accessing of a dynamic memory. The current leak circuit (X) may comprise two field-effect transistors (Q13,Q14) connected in series, or various arrangements of field-effect transistors and/or resistors.

    Acoustic surface wave transducer with improved inband frequency characteristics
    10.
    发明公开
    Acoustic surface wave transducer with improved inband frequency characteristics 失效
    表面具有改善的频率特性的声波换能器。

    公开(公告)号:EP0044732A2

    公开(公告)日:1982-01-27

    申请号:EP81303301.6

    申请日:1981-07-17

    IPC分类号: G10K11/36 H03H9/145

    摘要: An acoustic surface wave transducer with a transmission interdigital electrode (2A) and a reception interdigital electrode (2B) on a piezoelectric surface (1) has been improved by reducing the inband dispersion of frequency characteristics by providing an edge-effect canceller (k,), which cancels an undesired surface wave (E-a) which is generated at the external edge of the extreme end finger (11) of the interdigital electrode (10). The edge-effect canceller is constructed so that the length of the extreme end finger (11) is half of the length of the second extreme end finger (12) of the interdigital electrode, and the spacing between the extreme end finger (11) and the second extreme end finger (12) is 1/2 wavelength of the acoustic surface wave. Thus, the phase of the undesired surface wave (E-a) generated by the extreme end finger (11) of the transmission interdigital electrode is opposite to the wave (E-b) generated by the second extreme end finger (12) and the waves are of equal strength. Hence, those surface waves cancel each other as regards effect on the reception interdigital electrode (28), and the inband deviation or dispersion in the amplitude characteristic and/or the group delay characteristic of the transducer is reduced.