Solid state watch with inertial switch

Claim 2

A solid state wristwatch comprising a watch case, an electrically insulating frame mounted in said case, and a timing module mounted on said frame, said timing module comprising a multi-layer electrically insulating substrate, an electrically conductive circuit on opposite outer surfaces and at least one intermediate surface of said substrate, conductive means passing through said substrate and electrically interconnecting said circuits, a plurality of electro-optical digital display stations on one said outer surface of said substrate, and a large scale integrated timing circuit chip on the other of said outer surfaces of said substrate.

Claim 3

A wristwatch according to claim 1 wherein said substrate comprises a plurality of layers of ceramic material.

Claim 4

A wristwatch according to claim 2 wherein said substrate comprises two ceramic layers.

Claim 5

A wristwatch according to claim 1 wherein said timing circuit chip is wire bonded to the circuit on said other outer surface of said substrate.

Claim 6

A wristwatch according to claim 1 wherein said large scale integrated circuit chip comprises both a timekeeping circuit and a calendar circuit.

Claim 7

A wristwatch according to claim 1 wherein said timing module is staked to said frame.

Claim 8

A wristwatch according to claim 1 wherein said frame is provided with at least one cavity for receiving a battery, and an electrical lead frame coupling said cavity to said timing module.

Claim 9

A wristwatch according to claim 1 wherein said display stations each comprise a plurality of light emitting diodes.

Claim 10

A wristwatch according to claim 1 wherein said frame comprises at least one well and cooperating resilient projection, and a switch resiliently retained in said well by said projection.

Claim 11

A wristwatch according to claim 9 wherein said frame is made of electrically insulating plastic.

Claim 12

A wristwatch according to claim 9 wherein said switch comprises a reed switch.

Claim 13

A wristwatch according to claim 1 including an inertial switch mounted on said frame, and means coupling said inertial switch to said integrated circuit chip.

Claim 14

A wristwatch according to claim 12 wherein said integrated circuit chip includes a delay circuit for said inertial switch.

Claim 15

A wristwatch according to claim 13 wherein said chip is made of complementary symmetry MOS transistors.

Claim 16

A solid state wristwatch module for insertion into a watch case comprising an electrically insulating plastic frame, a plurality of switches on said frame, a piezoelectric crystal and a trimmer capacitor mounted on said frame, a timing module mounted on said frame, means on said frame electrically coupling said switches, said piezoelectric crystal and said trimmer capacitor to said timing module, said timing module comprising a multi-layer ceramic substrate, a printed circuit on opposite outer surfaces and at least one intermediate surface of said substrate, a plurality of conductive pins passing through said substrate and electrically interconnecting said printed circuits, a plurality of digital light emitting diode display stations mounted on one said outer surface of said substrate and electrically connected to the printed circuit on that surface, and a large scale integrated circuit chip including both a timekeeping circuit and a calendar circuit mounted on the other of said outer surfaces and electrically connected to the printed circuit on said other outer surface.

Claim 17

A solid state wristwatch module for insertion into a watch case comprising an electrically insulating plastic frame, a plurality of switches on said frame, a piezoelectric crystal and a trimmer capacitor mounted on said frame, a timing module mounted on said frame, means on said frame electrically coupling said switches, said piezoelectric crystal and said trimmer capacitor to said timing module, said timing module comprising a multi-layer ceramic substrate, a printed circuit on opposite outer surfaces and at least one intermediate surface of said substrate, a plurality of conductive pins passing through said substrate and electrically interconnecting said printed circuits, a plurality of digital light emitting diode display stations mounted on one said outer surface of said substrate and electrically connected to the printed circuit on that surface, and a large scale integrated circuit chip including both a timekeeping circuit and a calendar circuit mounted on the other of said outer surfaces and electrically connected to the printed circuit on said other outer surface.

Claim 18

A wristwatch module according to claim 15 wherein said timing module is coated with a clear potting compound.

Claim 19

A wristwatch module according to claim 15 including a dust cover overlying said integrated circuit chip and secured to said substrate.

Claim 20

A wristwatch module according to claim 15 including a photosensor on said one outer surface of said substrate adjacent said display stations, and means coupling said photosensor to said integrated circuit chip.

Claim 21

A wristwatch according to claim 15 including a segment driver transistor array on said other surface of said substrate, and means coupling said arrays to said integrated circuit chip and to said display stations.