Optics: measuring and testing – Range or remote distance finding – With photodetection
Reexamination Certificate
2007-03-27
2007-03-27
Tarcza, Thomas H. (Department: 3662)
Optics: measuring and testing
Range or remote distance finding
With photodetection
C356S005020, C356S005030, C356S004010
Reexamination Certificate
active
10891168
ABSTRACT:
A circuitry for measuring a time interval with ring oscillator has a ring oscillator formed by a plurality of delay switching units, a counter and an encoder. Wherein, the ring oscillator generates a plurality of oscillating signals when receives a pulse signal used to turn on or turn off the ring oscillator. The counter can count the numbers of the oscillating signal during an active period of the pulse signal to generate a counting value. In addition, the encoder encodes the oscillation signals generated by a plurality of delay switching unit with a certain interval of delay time. Therefore, when the pulse signal is disabled to lead to turn off the ring oscillator, one can obtain the time interval of the pulse signal based on the encode data and the counting value.
REFERENCES:
patent: 5619134 (1997-04-01), Watanabe et al.
patent: 5812427 (1998-09-01), Nonoyama et al.
Chen Ren-Her
Lin Yeah-Min
Lin Yun-Hsien
Luo Kuang-Tso
Wang Tsun-Hsin
Chung Shan Institute of Science and Technology Armaments Bureau,
J.C. Patents
Ratcliffe Luke
Tarcza Thomas H.
LandOfFree
Circuitry and method for measuring time interval with ring... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circuitry and method for measuring time interval with ring..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuitry and method for measuring time interval with ring... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3755850