Video Research Ltd.

Ikegami Tsushinki Co., Ltd.

K. K. Video Research

Yoshikazu Itoh

Fumio Watanabe

Shunji Wake

A monitoring apparatus for the use status of a car radio is disclosed. In addition to the function of identifying a radio station to which the car radio is tuned at any given time, the present apparatus is capable of identifying the individual actually in the driver's seat listening to that radio station, and of measuring the idle time during which the car radio could have been turned ON but actually was not. Also, the present apparatus has a rechargeable battery dedicated thereto, thereby to avoid overloading the vehicle-mounted storage battery used also for engine starter. Moreover, the present apparatus comprises a device for generating an excessive discharge alarm signal when the excessively discharged state of the rechargeable battery is detected. Furthermore, the present apparatus employs the radio station identification based on the detection of local oscillation frequency picked up at the tuner portion, which is in one to one correspondence with a radio station broadcast frequency.

Status monitoring apparatus for car radio

A data processing apparatus for use in an electronic data research system in which data produced at respective panelist' home is transmitted to a data center via a telephone link which is commonly used by a telephone set of the panelist' home, there are provided a center call mode in which the data is transmitted to the data center in response to the polling from the data center within a predetermined time gate, a terminal call mode in which the data is transmitted to the data center at a predetermined time out of the time gate, and a real time mode in which current data is transmitted to the data center while the connection between the panelist home and data center via the telephone link is continuously made.

Data processing apparatus

Apparatus for collecting television channel data and market research data

A system is disclosed for detecting the recording data of a video tape recorder, which is enabled to detect data concerning the time and channel a program played back was recorded at and through, by adding both calendar data such as the date and time and channel data indicating a channel to be recorded in the recording operation of the video tape recorder and by extracting the above-specified data in the playback operation.

Apparatus for detecting recorded data in a video tape recorder for

A system which detects the operation of a video tape recorder to obtain data related to the operation of the video tape recorder. The system is also capable of determining the dubbing condition of the video tape recorder over the recording of an ordinary broadcast. The system further determines the receiving channel of the video tape recorder or the television set by directly comparing video signals.

Audience rating measuring system

The invention relates to an audience rating measuring system for a television and a video tape recorder and provides an audience rating measuring system which can give accurate audience data under various conditions, such as when a television and a video tape recorder are used in combination, that can not be measured by the conventional audience rating measuring systems in general use. The audience rating measuring system of the invention comprises means for video tape recorder channel discrimination, video tape recorder operation mode discrimination, and television channel discrimination.

Growing community of inventors

Tokyo, Japan

Yoshikazu Itoh