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Class Information
Number: 368/83
Name: Horology: time measuring systems or devices > Chronological > With electro-optical display > Solid body light emitter (e.g., led)
Description: Subject matter wherein a change in the optical properties of solid display material is caused by an electrical current and results in the emission of visible radiation.










Patents under this class:

Patent Number Title Of Patent Date Issued
8547801 Stop light go light timer Oct. 1, 2013
8194507 Hidden display and clock audio apparatus including same Jun. 5, 2012
7646678 Analog watch Jan. 12, 2010
7385879 Radio-controlled clock Jun. 10, 2008
7221044 Heterogeneous integrated high voltage DC/AC light emitter May. 22, 2007
7215319 Wristwatch type device and method for moving pointer May. 8, 2007
6811278 Electroluminescent clock Nov. 2, 2004
6683822 Time display device Jan. 27, 2004
6628571 Watch Sep. 30, 2003
6388642 Bidirectional multispeed indexing control system May. 14, 2002
6326883 Device for monitoring the delivery of a speech Dec. 4, 2001
6229767 Display device and electronic watch using the device May. 8, 2001
6046401 Display device integrated into a photovoltaic panel Apr. 4, 2000
5917779 Transformerless LED driving circuit Jun. 29, 1999
5898647 Alternate carrier for a wrist instrument Apr. 27, 1999
4752919 Clock with digital hour station and line of discrete, binary minute substations Jun. 21, 1988
4747086 Digital watch with fluorescent display and mercury coated crystal May. 24, 1988
4597674 Multiplex digital clock Jul. 1, 1986
4448544 Method and apparatus to digitally display the time of day May. 15, 1984
4290131 Electronic timepiece Sep. 15, 1981
4258431 Electronic timepiece having an analog display device and a digital display device Mar. 24, 1981
4255806 Display means for chronometers with electro-optical elements Mar. 10, 1981
4233681 Electronic timepiece Nov. 11, 1980
4207734 LED Digital watch with user control of display timing and brightness Jun. 17, 1980
4205518 Voltage conversion system for electronic timepiece Jun. 3, 1980
4202235 Electronic musical box May. 13, 1980
4184319 Digital display type electronic time piece Jan. 22, 1980
4176516 Arrangement for putting an electronic timepiece right with minute indication advanced at first Dec. 4, 1979
4157007 Asymmetric digital watch module Jun. 5, 1979
4131864 Low voltage compensator for power supply in a complementary MOS transistor crystal oscillator circuit Dec. 26, 1978
4120148 Logic circuit for use in two or three button digital watch Oct. 17, 1978
4114366 Digital brightness control system Sep. 19, 1978
4095414 Electronic timepiece Jun. 20, 1978
4095413 Electronic timepiece Jun. 20, 1978
4084402 Timing circuit for display sequencing in a digital wristwatch Apr. 18, 1978
4075826 Timing circuit for digital wristwatch Feb. 28, 1978
RE29551 Electronic watch movement mounting and connection Feb. 28, 1978
4074515 Electronic timepiece with battery life display Feb. 21, 1978
4064688 Touch sensitive electrode assembly for solid state wristwatches Dec. 27, 1977
4059955 One button digital watch and method of setting the display Nov. 29, 1977
4030285 Electronic hour glass clock Jun. 21, 1977
4026101 Push button response of combination LCD/LED wristwatch May. 31, 1977
4026102 Electronic clock May. 31, 1977
4006583 Electronic display device for timepiece and the like Feb. 8, 1977
3998044 Electronic timepiece Dec. 21, 1976
3992875 Electronic clock apparatus Nov. 23, 1976
3986335 Electronic watch module and its method of fabrication Oct. 19, 1976
3986334 Electronic watch and its method of fabrication Oct. 19, 1976
3956880 Solid state wristwatch with charge coupled divider May. 18, 1976











 
 
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