Solid state watch
阅读：955发布：2023-08-06
专利汇可以提供Solid state watch专利检索，专利查询，专利分析的服务。并且Disclosed is a solid state watch which requires no moving parts for timekeeping and display. The watch comprises a crystal controlled oscillator connected through an intergrated circuit binary frequency divider to an electro-optical display in the form of light emitting diodes. The display is energized only on demand and the level of the light output is controlled in accordance with ambient light conditions. The watch is energized from a rechargeable battery.，下面是Solid state watch专利的具体信息内容。
1. A wristwatch comprising a source of frequency controlled electrical timing signals, a first divider coupled to said source for lowering the frequency of the timing signals to a frequency greater than 1 Hz, a resettable divider coupled to saiD first divider for lowering the frequency of said timing signals to 1 Hz, seconds, minutes and hours counters coupled to said resettable divider for producing electrical time display signals, an electro-optical digital time display coupled to said counters, minutes setting means coupled to said minutes counter, and means coupling said minutes setting means to said resettable divider for resetting said divider when said minutes setting means is actuated.
2. A wristwatch according to claim 1 wherein said seconds counter is resettable, and means coupling said minutes setting means to said seconds counter for resetting said seconds counter when said minutes setting means is actuated.
3. A wristwatch according to claim 2 wherein said minutes setting means comprises a switch, a restart switch, means coupling said minutes setting switch to said resettable divider and said seconds counter for disabling said resettable divider and said seconds counter in response to actuation of said minutes setting switch, and means coupling said restart switch to said resettable divider and said seconds counter for re-enabling said resettable divider and said seconds counter in response to actuation of said restart switch.
4. A wristwatch according to claim 3 wherein said restart switch comprises a display demand switch.
5. A wristwatch according to claim 3 including a set-hold circuit coupling said minutes setting switch and said restart switch to said resettable divider and said seconds counter.
6. A wristwatch according to claim 3 including a minute set circuit coupling said minutes setting switch to said minutes counter for applying a signal greater in frequency than 1 Hz to said minutes counter in response to actuation of said minutes setting switch.
7. A wristwatch according to claim 6 wherein said greater frequency signal is applied to said minutes counter as long as said minutes setting switch is actuated.
8. A wristwatch comprising a source of frequency controlled electrical timing signals, a first multi-stage binary chain divider coupled to said source for lowering the frequency of the timing signals to a frequency greater than 1 Hz, a resettable divider coupled to said first divider for lowering the frequency of said timing signals to 1 Hz, a divide by 60 seconds counter, a divide by 60 minutes counter and a divide by 12 hours counter all coupled to said resettable divider for producing electrical time display signals, said counters being formed as binary chains to produce time display signals in binary coded decimal form, a decimal electro-optical time display coupled to said counters, a minute set switch coupled to said minutes counter for advancing said minutes counter in response to operation of said minute set switch, means coupling said minute set switch to said resettable divider and said seconds counter for resetting and holding the reset state of said resettable divider and said seconds counter in response to actuation of said minute set switch, a restart switch, and means coupling said restart switch to said resettable divider and said seconds counter for releasing them from said reset state in response to actuation of said restart switch.
9. A wristwatch according to claim 8 including an hour set switch, and means coupling said hour set switch to said hours counter for advancing said hours counter in response to actuation of said hour set switch.
10. A wristwatch according to claim 8 wherein said resettable divider comprises a three stage binary dividing chain.
11. A wristwatch according to claim 8 including means for applying a 2 Hz advancing signal to said minutes counter as long as said minute set switch is actuated.
12. A wristwatch according to claim 8 wherein said electro-optical display comprises a plurality of light emitting diodes forming seconds, minutes and hours display stations, and a bi-polar driver transistor coupling said counters to said light emitting diodes.
13. A Wristwatch according to claim 12 including a complementary MOS inverter coupling said counters to said bi-polar driver transistor.
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