Control switches to watch having a digital display

Claim 2

A watch comprising quartz crystal oscillator means for producing a high frequency time standard signal; counter and decoder means for producing timing signals from said high frequency time standard signal; display means for providing a digital display of time in response to said timing signals; a watch case containing said quartz crystal oscillator means and counter and decoder means, and having said display means on a side thereof; push-button switch means for the separate adjustment of time and for resetting said counter means, said switch means being positioned on said watch case on the side thereof having said display means thereon, mechanical locking means for selectively retaining said respective switch means in their inoperative states.

Claim 3

A watch as recited in claim 1, wherein each of said switch means includes a push-button and means for biasing said push-button in said inoperative position, said switch means push-buttons being substantially aligned along an axis; said mechanical locking means including a shaft member longitudinally displaceable along said axis and a stopper member associated with each of said switch means push-buttons and mounted on said shaft member for registration with the associated push-button member at a first position of said shaft member and non-interference with said push-button at a second position of said shaft member, said shaft member projecting outside of said case for the manual manipulation thereof, said push-buttons being inoperative when said stopper members are in registration therewith.

Claim 4

A watch as recited in claim 2, wherein all of said switch means are make switches which are off when inoperative during normal operation of said watch and are on when operative for time adjustment, resetting and setting.

Claim 5

A watch as recited in claim 3, including a source of voltaGe, a ground, inverter circuit means for control by one of said switch means and having an input, and a MOS transistor connected with its source-drain path intermediate said inverter means input and ground, said one switch means being connected intermediate said source of voltage and said inverter input so that the state of said inverter is determined by the drain voltage of said MOS transistor.

Claim 6

A watch comprising quartz crystal oscillator means for producing a high frequency time standard signal; counter and decoder means for producing low frequency timing signals in response to said time standard signal; digital display means for the digital display of time in response to said timing signals; switch means including separate push buttons for adjusting time and resetting said counter means; and mechanical locking means operatively coupled to said switch means for selectively rendering said push buttons inoperative.

Claim 7

A watch comprising quartz crystal oscillator means for producing a high frequency time standard signal; counter and decoder means for producing low frequency timing signals in response to said time standard signal; digital display means for the digital display of time in response to said timing signals; switch means including separate push buttons for adjusting time and resetting said counter means; and mechanical locking means operatively coupled to said switch means for selectively rendering said push buttons inoperative.

Claim 8

A watch as recited in claim 5, wherein at least some of said push-buttons are aligned along an axis, said locking means including a longitudinally displaceable shaft member, a stopping member associated with each of said aligned push-buttons mounted on said shaft member, said stopping members being selectively positionable at a first position at which said stopping members are in registration with their respective push-buttons to render said push-buttons inoperative, and a second non-interfering position with said push-buttons in response to the manual manipulation of said shaft member.

Claim 9

A watch as recited in claim 5, wherein each of said switch means are operative when on, said electronic locking means including further switch means connected in series with each of said first-mentioned switch means for rendering said first -mentioned switch means inoperative when said further switch means is open.

Claim 10

A watch as recited in claim 5, wherein all of said switch means are make switches which are off when inoperative during normal operation of said watch and are on when operative for time adjustment and resetting said counter means.

Claim 11

A watch as recited in claim 8, including a source of voltage, a ground, inverter means for control by one of said switch means and including an input, and a MOS transistor, said MOS transistor being connected with its source-drain path intermediate said inverter means input and said ground, said one of said switch means being connected intermediate said source of voltage and said input whereby the state of said inverter means is dependent on the stage of said one switch means.

Claim 12

A watch comprising a quartz crystal oscillator means for producing a high frequency time standard signal; counter and decoder means for producing timing signals in response to said time standard signal; digital display means for the digital display of time in response to said timing signals; push-button switch means operatively coupled to said counter and decoder means for adjusting time and for resetting said counter means; a source of voltage; a ground; inverter means for operatively coupled said switch means to said counter and decoder means and having an input; and a MOS transistor connected intermediate said ground and said inverter means input, one of said switch means being connected intermediate said inverter means input and said source of voltage, whereby the state of said inverter is responsive to the drain voltage of said MOS transistor.

Claim 13

A watch comprising a quartz crystal oscillator means for producing a high frequency time standard signal; counter and decoder means for producing timing signals in response to said time standard signal; digital display means for the digital display of time in response to said timing signals; push-button switch means operatively coupled to said counter and decoder means for adjusting time and for resetting said counter means; a source of voltage; a ground; inverter means for operatively coupled said switch means to said counter and decoder means and having an input; and a MOS transistor connected intermediate said ground and said inverter means input, one of said switch means being connected intermediate said inverter means input and said source of voltage, whereby the state of said inverter is responsive to the drain voltage of said MOS transistor.

Claim 14

A watch comprising quartz crystal oscillator means for producing a high frequency time standard signal; counter and decoder means for producing low frequency timing signals in response to said time standard signal; digital display means for the digital display of time in response to said timing signals; push-button switch means for adjusting time and resetting said counter means; and electrical locking means operatively coupled to said switch means for selectively rendering said switch means inoperative by the selective disabling of the circuits including said switch meanS.

Claim 15

A watch comprising quartz crystal oscillator means for producing a high frequency time standard signal; counter and decoder means for producing low frequency timing signals in response to said time standard signal; digital display means for the digital display of time in response to said timing signals; push-button switch means for adjusting time and resetting said counter means; and electrical locking means operatively coupled to said switch means for selectively rendering said switch means inoperative by the selective disabling of the circuits including said switch meanS.