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    • 1. 发明授权
    • Remote line monitoring method and device for CATV system
    • CATV系统的远程线路监控方法和设备
    • US4408345A
    • 1983-10-04
    • US160699
    • 1980-06-18
    • Kenji YashiroToshio Tabata
    • Kenji YashiroToshio Tabata
    • H04N17/00H04B3/46H04N7/10
    • H04H20/12H04B3/46H04H20/78H04N7/10
    • A remote line monitoring device and method for a CATV system in which a center facility is connected to plural terminal units through cables of the system to transmit television signals to subscribers' homes. A plurality of monitoring terminal units are provided along various points of the interconnecting cables. Each of the monitoring terminal units is identified by an unique address. To determine conditions throughout the system, a central monitoring system transmits polling signals on the cables. If an address contained within the polling signals matches with a prestored identifying address, a monitoring terminal unit responds by transmitting data produced by monitoring converter units back to the center facility. The center facility can then display the data or produce indications identifying problems along the cables.
    • 一种用于CATV系统的远程线路监视装置和方法,其中中心设备通过系统的电缆连接到多个终端单元,以将电视信号发送到用户的家庭。 多个监控终端单元沿互连电缆的各个点提供。 每个监控终端单元由唯一地址标识。 为了确定整个系统的状况,中央监控系统在电缆上传输轮询信号。 如果包含在轮询信号内的地址与预先存储的识别地址匹配,则监视终端单元通过将由监视转换器单元产生的数据发送回中心设备进行响应。 然后,中心设备可以显示数据或产生沿着电缆识别问题的指示。
    • 2. 发明授权
    • Remote control system
    • 远程控制系统
    • US5233342A
    • 1993-08-03
    • US657803
    • 1991-02-20
    • Kenji YashiroTakashi Okamoto
    • Kenji YashiroTakashi Okamoto
    • H02J13/00H04L12/28H04M11/00H04Q9/00
    • H04L12/2818H02J13/0031H04Q9/00H04L2012/285H04Q2209/10H04Q2209/30H04Q2209/88Y02B70/325Y02B90/2692Y02E60/74Y04S10/30Y04S20/228Y04S40/146Y10T307/865
    • A remote control system is employed with a view to realization of automated/unattended control in supervisory control of power equipment, transportion/traffic equipment, building equipment, home equipment, and the like. This remote control system includes a priority rank determination unit and a control unit on the controlled side where a control signal for controlling the operation of a plurality of electric equipment is inputted through a communication system from the control side. The priority rank determination unit determines an operating priority rank of respective electric equipments on the basis of respective power dissipations of the plurality of electric equipments. The control unit operates respective electric equipments on the basis of the operating priority rank thus determined. By controlling the operation of the electric equipment in this way, an accident of interruption of the operation of the entire system resulting from the operation of a specific electric equipment is prevented. Further, since this system judges in advance as to whether or not the operation of a specific electric equipment is proper, thus making it possible to prevent in advance the operation of an interrupter, etc., the supervisory control of the system is always maintained.
    • 采用遥控系统,以实现电力设备,运输/交通设备,建筑设备,家庭设备等的监控中的自动/无人值守控制。 该远程控制系统包括控制侧的优先级确定单元和控制单元,用于通过通信系统从控制侧输入用于控制多个电气设备的操作的控制信号。 优先级确定单元基于多个电气设备的各自的功率消耗来确定各个电气设备的操作优先等级。 控制单元基于如此确定的操作优先级对各个电气设备进行操作。 通过以这种方式控制电气设备的操作,防止了由特定电气设备的操作导致的整个系统的操作中断的事故。 此外,由于该系统预先判断特定电气设备的操作是否合适,因此能够预先防止断续器等的操作,始终保持系统的监控。
    • 3. 发明授权
    • Device for sensing the operative status of electrical equipment
    • 用于感应电气设备操作状态的装置
    • US4045732A
    • 1977-08-30
    • US655157
    • 1976-02-04
    • Kenji YashiroYoshifumi Saeki
    • Kenji YashiroYoshifumi Saeki
    • H02M7/155G01R29/04H02H3/00H02M7/06G01R19/16
    • G01R29/04
    • The operative status of an electrical apparatus unit such as a television receiver, incorporating an AC-DC converter, and drawing a substantial amount of current is sensed while differentiating from the usage of a lower amount of current, as when operating in a standby mode. The sensor distinguishes between the standby current waveform and a distinctly different current waveform generated when the AC-DC converter draws current in the mode in which full power is on. The sensor incorporates a reference current detector responsive to the mean of the absolute value of alternating current flowing through a power line to the electrical unit, and a peak value current detector responsive to the peak value of the periodic signal on the power line. A comparator circuit receives outputs from both detectors, and provides an output signal when the ratio therebetween is in excess of a predetermined value, this condition only applying when the AC-DC converter is operative. The comparator may comprise a differential amplifier which periodically triggers a pulse generator to maintain a selected signal level and activate a relay as long as the selected proportionality exists between the peak and mean values of the AC power signal.
    • 5. 发明申请
    • Supply control apparatus and power supply control method
    • 供电控制装置及电源控制方式
    • US20050050388A1
    • 2005-03-03
    • US10926038
    • 2004-08-26
    • Kenji Yashiro
    • Kenji Yashiro
    • H04Q9/00G06F11/00H02J9/00
    • H02J9/005
    • In a power supply control apparatus for controlling turn-on/turn-off of power of a main power supply to a load via a switch section, a drive signal producing section produces a drive signal for controlling ON/OFF operations of the switch section, based on an activation signal output from an activating section. A standby power supply supplies operation power to the activating section 11 and the drive signal producing section. A power failure monitoring section produces an energization signal indicative of a result of monitoring of an output of the main power supply, and outputs the signal to the activating section. The activating section outputs the activation signal based on the energization signal.
    • 在用于控制通过开关部分对负载的主电源的电源的接通/关断的电源控制装置中,驱动信号产生部分产生用于控制开关部分的接通/断开操作的驱动信号, 基于从激活部分输出的激活信号。 待机电源向激活部分11和驱动信号产生部分提供操作电力。 电源故障监视部分产生指示主电源的输出监视结果的通电信号,并将该信号输出到激活部分。 激活部分基于通电信号输出激活信号。
    • 7. 发明授权
    • CATV telephone system
    • 有线电视电话系统
    • US5767895A
    • 1998-06-16
    • US535616
    • 1995-09-28
    • Kenji YashiroTetsuichiro Sasada
    • Kenji YashiroTetsuichiro Sasada
    • H04J3/00H04M3/00H04M11/06H04N7/16H04N21/2385H04N21/426H04N7/173
    • H04N7/17318
    • A CATV telephone system includes a center device and a plurality of terminal devices connected by wired communication lines. The center device receives a request data from the terminal device, examines the frequency bands and the time slots currently occupied, allocates non-busy frequency bands and non-busy time slots to the transmission frequency band, the transmission time slot, the reception frequency band and the reception time slot, and notifies the allocation to the terminal device. Then, the terminal device transmits telephone data to the center device using the transmission frequency band and the transmission time slot designated by the center device, and receives telephone data from the center device using the reception frequency band and the reception time slot designated by the center device.
    • 有线电视电话系统包括通过有线通信线路连接的中心设备和多个终端设备。 中心设备从终端设备接收请求数据,检查当前占用的频带和时隙,向发送频带,发送时隙,接收频带分配非忙频段和非忙时隙 和接收时隙,并将该分配通知给终端装置。 然后,终端装置使用由中心装置指定的发送频带和发送时隙向中心装置发送电话数据,并使用接收频带和由中心指定的接收时隙从中心装置接收电话数据 设备。
    • 8. 发明授权
    • Polling pattern generator for CATV system
    • 轮询模式发生器用于CATV系统
    • US4475121A
    • 1984-10-02
    • US269164
    • 1981-06-01
    • Kenji Yashiro
    • Kenji Yashiro
    • H04N7/173H04B3/46H04B17/00H04N7/16H04N17/00H04N7/10
    • H04H60/21H04H60/32H04H60/43H04N7/17309H04H2201/70H04N2007/17372
    • A polling pattern generator system for use in a CATV system including a polling pattern generator and a passive data monitor. The polling pattern generator periodically generates polling pattern signals each of which has a specific address code for calling a corresponding terminal unit and a command code for requesting a designated answer from the called terminal unit. The passive data monitor compares an up data signal outputted from the terminal unit in response to the command code with the designated answer requested by the command code and judges whether or not an operational state of the terminal unit is acceptable from the resultant comparison output. The passive data monitor sets the address code in the designated terminal unit.
    • 一种用于CATV系统的轮询模式发生器系统,包括轮询模式发生器和无源数据监视器。 轮询模式发生器周期性地产生轮询模式信号,每个轮询模式信号具有用于呼叫相应终端单元的特定地址码和用于从被叫终端单元请求指定答案的命令码。 被动数据监视器将从终端单元输出的上行数据信号与由指令代码请求的指定答案相对应的命令代码进行比较,并根据结果比较输出判断终端单元的工作状态是否可接受。 被动数据监视器在指定的终端单元中设置地址码。