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| Number | Title | Issue Date |
| 7398411 | Self-calibrating time code generator Provided is a self-calibrating time code generator and method for generating an accurate time code (e.g., an accurate IRIG waveform). The self-calibrating time code generator includes a phase-locked loop configured to provide a generated output signal based on a pha... | 07/08/2008 |
| 7395448 | Directly obtaining by application programs information usable in determining clock accuracy Information usable in determining the quality of time produced by a clock of a processing environment is obtained. The information is obtained directly by an application program absent use of a supervisor service, such as an operating system or operating system serv... | 07/01/2008 |
| 7385879 | Radio-controlled clock A radio-controlled clock (RCC) for receiving and decoding a transmitted time signal to display a precise time in accordance with a time standard. A light emitting diode (LED) display emits sufficient light for easy readability under all lighting conditions, includin... | 06/10/2008 |
| 7256845 | Cholesteric liquid crystal (CLC) display device and method for manufacturing the same A liquid crystal display device having a cholesteric liquid crystal (CLC) color filter comprises a first substrate, a circular polarizer on the first substrate, a cholesteric liquid crystal (CLC) color filter on the circular polarizer, a first electrode on the chole... | 08/14/2007 |
| 7095679 | Electronic timepiece, control method for electronic timepiece, regulating system for electronic timepiece, and regulating method for electronic timepiece In an analog electrical timepiece with a motor coil, when an external operating member is in a prescribed operating condition, the operating mode of the analog electrical timepiece is set to the data receive mode. Next, the analog timepiece generates a synchronizati... | 08/22/2006 |
| 6850468 | Electronic timepiece, control method for electronic timepiece, regulating system for electronic timepiece, and regulating method for electronic timepiece In an analog electrical timepiece with a motor coil, when an external operating member is in a prescribed operating condition, the operating mode of the analog electrical timepiece is set to the data receive mode. Next, the analog timepiece generates a synchronizati... | 02/01/2005 |
| 6754138 | Data transmission/reception system for electronic timepieces A data transmission/reception system for wrist-type electronic timepiece. The data transmission/reception system for electronic timepieces comprises a data transmission device for generating data signals, and an electronic timepiece that receives data signals from t... | 06/22/2004 |
| 6548997 | Mechanism for measurement of time duration between asynchronous events A novel and useful mechanism for measuring the time duration between asynchronous events. The mechanism utilizes two metastability resolvers, one for detecting the rising edge of the input signal and one for detecting its falling edge. The input signal is... | 04/15/2003 |
| 6522601 | Data transmission/reception system for electronic timepieces A data transmission/reception system for wrist-type electronic timepiece. The data transmission/reception system for electronic timepieces comprises a data transmission device for generating data signals, and an electronic timepiece that receives data sig... | 02/18/2003 |
| 6205090 | Automatically correctable clock A self adjusting clock system operable to provide a uniform time display on clocks throughout a facility including a master time-keeper, a plurality of slave time-keepers, and a time-keeping correction apparatus for correcting time of the slave time-keepe... | 03/20/2001 |
| 5442599 | Impulse clock system A master secondary clock system of the analog impulse type consisting of separate motor driven secondary clocks and a master control unit. The secondary clocks can be set at any time by an appropriate signal from the master clock so that even widely scatt... | 08/15/1995 |
| 5282180 | Impulse clock system A master/secondary clock system of the impulse type consisting of stepper motor driven secondary clocks and a master control unit. At five minutes before a predetermined registration time, for example 6:00, the sensor of each secondary clock movement is a... | 01/25/1994 |
| 4206327 | Switching arrangements A switching arrangement comprises a spring-loaded clockwork movement and a switch to control a device, the movement of the spring itself, as it is tensioned or becomes substantially de-tensioned, being utilized to operate the switch.... | 06/03/1980 |
| 4182111 | Electronic timepiece An electronic timepiece which is provided with a control circuit receiving as an input a time correction signal from a frequency divider circuit and delivering an output for driving an electro-mechanical converter so as to correct times of the timepiece. ... | 01/08/1980 |
| 4177454 | Digital display system A digital display system with a control unit and a plurality of display units each adapted to be driven by a signal from the control unit. The control unit includes an A.C. power supply for generating a fixed A.C. voltage, and the control unit produces a ... | 12/04/1979 |
| 4175375 | Electronic watch having improved level setting circuit An electronic watch comprising a level setting circuit which consists of a resistive device and a switching element connected between a switch and a power source. The resistance value of the switching element is much smaller than that of the resistive dev... | 11/27/1979 |
| 4170105 | Electronic timepiece An electronic timepiece which comprises a time-counter for counting a number of reference clock pulses issued from a reference oscillator; a control circuit for controlling the selection of various functions; a display device for displaying count values c... | 10/09/1979 |
