Digital operation recorder

Details Digital operation recorder Digital operation recorder

1994-06-20

1996-06-11

Chin, Gary

Boots, shoes, and leggings

36442404, 340438, G06F 1900

Patent

active

055262694

ABSTRACT:
A digital operation recorder provided with a recording medium having a data region for recording operation data for each operation of a car, a clock, whose time is correctable, for generating time data, and a write means for successively writing the operation data into the data region within the recording medium at intervals of a preset time and writing, in response to the time data from the clock, such data from which its starting time and ending time can be found out is disclosed. In the recorder, the write means comprises a time write means for writing, every time the operation data of the car is successively written into the data area within the recording medium, the time elapsed after the start of each operation into a first area of the data region such that the currently written elapsed time supersedes the previously written time, and a time-of-day write means for writing, every time the operation data of the car is successively written into the data area within the recording medium, the time of write into a second area of the data region such that the currently written time of write supersedes the previously written time.

REFERENCES:
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patent: 4638289 (1987-01-01), Zottnik
patent: 4685061 (1987-08-01), Whitaker
patent: 4858133 (1989-08-01), Takeuchi et al.
patent: 4866616 (1989-09-01), Takeuchi et al.
patent: 4992943 (1991-02-01), McCracken
patent: 5046007 (1991-09-01), McCrey et al.
patent: 5253224 (1993-10-01), Van Doesburg
English Abstract of DE 38 39 211 A1 by D. W. Morche, "Journey Data Memory Receiving Signals from Vehicle Tacho--Adding in Counter and Storing in Volatile Buffer Memory and Permanent Memory With Data and Time".

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