Vehicle data recorder employing data compression

Details Vehicle data recorder employing data compression Vehicle data recorder employing data compression

G - Physics

11

B

352/10.2

G11B 5/00 (2006.01)

Patent

CA 1059619

INVENTOR: BERNARD E. CALLAHAN TITLE: VEHICLE DATA RECORDER EMPLOYING DATA COMPRESSION ABSTRACT OF THE DISCLOSURE: An axle pickup generates signals each time a vehicle travels a predetermined distance. Means are provided for measur- ing distance travelled as well as measuring changes in vehicle speed. If the speed has varied between sequential signals, or if particular events are detected during sequential signals, a tape recorder is actuated to record these occurrences. If there is no speed change and no events occur, the recorder is not actua- ted thus effecting data compression.

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