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A distance measuring device includes a light emitting system that emits light toward an object that is subject to a distance measurement. A light receiving system is provided to receive optical images which are formed by an optical system. The light receiving system outputs data corresponding to the

A distance measuring device includes a light emitting system that emits light toward an object that is subject to a distance measurement. A light receiving system is provided to receive optical images which are formed by an optical system. The light receiving system outputs data corresponding to the received images. The light receiving system is capable of receiving the object images when the light emitting system emits the light, and when the light emitting system does not emit the light. Further, the distance measuring device includes a control system that receives the data output by the light receiving system twice at the greatest, and performs distance measuring operations, which include a passive distance measurement and an active distance measurement, based on the data output by the light receiving system.

대표청구항 ▼

A distance measuring device includes a light emitting system that emits light toward an object that is subject to a distance measurement. A light receiving system is provided to receive optical images which are formed by an optical system. The light receiving system outputs data corresponding to the

A distance measuring device includes a light emitting system that emits light toward an object that is subject to a distance measurement. A light receiving system is provided to receive optical images which are formed by an optical system. The light receiving system outputs data corresponding to the received images. The light receiving system is capable of receiving the object images when the light emitting system emits the light, and when the light emitting system does not emit the light. Further, the distance measuring device includes a control system that receives the data output by the light receiving system twice at the greatest, and performs distance measuring operations, which include a passive distance measurement and an active distance measurement, based on the data output by the light receiving system. tube on which an image represented by said received signal is to be viewed. 8. The method according to claim 7, wherein said generating step comprises generating a constant slope vertical deflection signal for said received signal that is DC coupled to said display tube. 9. The method according to claim 1, wherein said adjusting step comprises adding to said lines per field displayed to decrease an average of said display frame rate and subtracting from said lines per field to increase an average of said display frame rate. 10. The method according to claim 1, wherein said receiver comprises a DC coupled and constant slope ramp vertical deflection system. 11. The method according to claim 1, wherein said step of adjusting comprises varying lines per field displayed for an average display frame rate in frames per second selected from the group consisting of 29.97, 30, 59.94 and 60. 12. The method according to claim 1, wherein for 1080 interlaced picture lines said adjusting step comprises varying the lines per field displayed to be one of selected from the group consisting of 1123, 1125 and 1127. 13. The method according to claim 1, wherein for two successive frames of 540 progressive picture lines said adjusting step comprises varying the lines per field displayed to be one of selected from the group consisting of 1124, 1126 and 1128. 14. A receiver for adapting a display frame rate to a picture frame rate of a received signal comprising: a DC coupled and constant slope ramp vertical deflection system; a signal decoder for a received signal that provides a first signal for video processing to drive a display tube and a second signal indicative of a picture frame rate of said received signal; a comparator for comparing said second signal with a timing signal indicative of a display frame rate for said receiver; means for adjusting lines per field or lines per frame displayed by said receiver in response to said comparator; and a raster generator for providing horizontal and vertical deflection signals to drive said deflection system in response to said means for adjusting lines per field or lines per frame displayed. 15. The receiver according to claim 14, wherein said signal decoder is for decoding an analog form of said received signal and said second signal is a vertical synchronization signal. 16. The receiver according to claim 14, wherein said signal decoder is a de-multiplexor for a digital form of said received signal and said second signal is a timing reference signal. 17. The receiver according to claim 14, wherein said signal decoder comprises both an analog signal decoder and an digital signal de-multiplexor, said second signal being a vertical synchronization signal when output by said analog signal decoder and a program clock reference when output by said de-multiplexor. 18. The receiver according to claim 14, wherein for an analog form of said received signal said comparator is a phase comparator for comparing said second signal that is a vertical synchronization signal to said timing signal that is a second vertical synchronization signal. 19. The receiver according to claim 14, wherein for a digital form of said received signal said comparator compares said second signal that is a program clock reference for said received signal to said timing signal that is a local program clock reference. 20. The receiver according to claim 14, wherein for said received signal comprising 1080 interlaced picture lines said means for adjusting comprises varying said lines per field displayed to one of selected from the group consisting of 1123, 1125, and 1127. 21. The receiver according to claim 14, wherein for said received signal comprising two successive frames of 540 progressive picture lines per frame said means for adjusting comprises varying the lines per two frames displayed to one of selected from the group consisting of 1124, 1126 and 1128. 22. A receiver for adapting a display frame rate to a picture frame