Video cassette recorder adapter
    1.
    发明授权
    Video cassette recorder adapter 失效
    录像机适配器

    公开(公告)号:US4633302A

    公开(公告)日:1986-12-30

    申请号:US781855

    申请日:1985-10-01

    申请人: Joseph A. Damoci

    发明人: Joseph A. Damoci

    摘要: An adapter for metering tv viewing in homes having video cassette recorders ("VCR's"). The adapter disables antenna (cable) input to the VCR except when in the record mode. Record mode is detected by a probe which detects the 70 MHz erase signal of the erase heads. When in record mode, antenna input to the VCR is enabled and a tv meter determines channel tuning. A bandpass filter on the VCR video output restricts the tv's ability to tube channels other than the VCR output. If the tv is tuned to the VCR output channel, the viewer is monitoring the program being recorded or watching a prerecorded tape. Otherwise, he is tuning through the normal antenna (cable) input and a meter determines the tv's channel tuning.

    摘要翻译: 用于在具有录像机(VCR)的家庭中测量电视观看的适配器。 适配器禁用天线(电缆)输入到录像机,除非在录制模式下。 通过探测器检测记录模式,该探头检测擦除头的70 MHz擦除信号。 当在录制模式下,天线输入到录像机被启用,电视表确定频道调谐。 VCR视频输出上的带通滤波器限制电视机对VCR输出以外的其他通道的管理能力。 如果将电视机调到VCR输出通道,则观看者正在监视正在录制的节目或观看预先录制的磁带。 否则,他通过正常的天线(电缆)输入进行调谐,一个电平表决定电视的频道调谐。

    Distributed monitoring system
    3.
    发明授权
    Distributed monitoring system 失效
    分布式监控系统

    公开(公告)号:US4912552A

    公开(公告)日:1990-03-27

    申请号:US183113

    申请日:1988-04-19

    IPC分类号: H04M11/00 H04H60/31 H04Q9/00

    CPC分类号: H04Q9/00 H04H20/106 H04H60/31

    摘要: A system is disclosed which may be used for collecting television channel tuning data, household purchase data, VCR channel usage data and the like; on site at a plurality of preselected households, wherein the system concentrates and transmits the collected data to a central site in a fault tolerant manner, transparent to the occupants of the household. The novel system features a hub and spoke architecture for effecting communications between the central site and each household (remote site). The hub and spoke architecture at each remote site comprises a hub unit, and a set of spoke meters. The hub unit is adapted to be coupled, in a variety of ways, to a set of metering devices, one or more of which is coupled to one or more television receivers and/or cable television converters. Not all of the metering devices need be coupled to the television receiver or cable converter, e.g., stand alone purchase meters and wands may be coupled to the hub. The meters may be polled systematically, e.g. on a virtually continuous or periodic basis, by the hub, which then collects and concentrates the data acquired by each meter. As a result of this arrangement standard communications and data transmission "smarts" can be used at the meter level, meter storage requirements are kept to a minimum and no meter communications programming is required. Additionally, the hub can be easily reprogrammed by downloading control software from the central site without having to modify the meters.

    Cable sensor for sensing a DC signal from a cable headend
    4.
    发明授权
    Cable sensor for sensing a DC signal from a cable headend 失效
    电缆传感器,用于感测电缆头端的直流信号

    公开(公告)号:US4630313A

    公开(公告)日:1986-12-16

    申请号:US763748

    申请日:1985-08-08

    申请人: Joseph A. Damoci

    发明人: Joseph A. Damoci

    CPC分类号: H04N7/163

    摘要: A cable sensor for sensing a DC signal sent by a cable system's headend in order to switch a converter from converting one set of frequencies to another. When the cable sensor detects such a DC signal, it provides isolation from the DC for a cable tv ratings monitor connected to the cable system and further provides a signal to the monitor that the signal has occurred in order for the monitor to switch frequency/program assignments.

    摘要翻译: 一种电缆传感器,用于感测由电缆系统头端发送的直流信号,以便切换转换器将一组频率转换为另一组频率。 当电缆传感器检测到这样的直流信号时,它提供与连接到电缆系统的电缆电视额定值监视器的DC隔离,并且还向监视器提供信号以发出信号,以使监视器切换频率/程序 作业。