Analog clock

Details Analog clock Analog clock

1987-11-16

1988-07-12

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With mechanical or electromechanical driven display

368157, 368187, G04B 1904, G04F 500

Patent

active

047574836

ABSTRACT:
An analog clock comprises an oscillator circuit for producing a signal having a predetermined frequency, a circuit for frequency-dividing the output signal of the oscillator circuit so as to produce a clock pulse signal and adjustment pulse signals having a period different from that of the clock pulse signal, a manipulation part for producing an adjustment instruction signal responsive to a time adjustment made in the manipulation part, a circuit for producing a driving pulse signal from one of the clock pulse signal and the adjustment pulse signals depending on the adjustment instruction signal and for supplying the driving pulse signal to a coil for forward rotation or to a coil for reverse rotation, and a stepping motor having a rotor which is rotated in the forward (or reverse) direction by a predetermined angle responsive to an excitation of the coil for forward (or reverse) rotation by one pulse of the driving pulse signal. Hands of the analog clock are rotated by the rotation of the rotor.

REFERENCES:
patent: 4086755 (1978-05-01), Ueda
patent: 4095406 (1978-06-01), Kikuchi et al.
patent: 4150536 (1979-04-01), Nakajima et al.
patent: 4357693 (1982-11-01), Plancon et al.
patent: 4445785 (1984-05-01), Chambon et al.
patent: 4514676 (1985-04-01), Grandjean et al.

Affiliated with

Also associated with

Rating

Analog clock does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Analog clock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analog clock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-668706