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| Number | Title | Issue Date |
| 7288914 | Drive wave generation circuit Two standard waves from a standard waveform generation circuit are output via an output gate while being interchanged by a direction selector. The switching operation of the direction selector is controlled by a direction control signal M/I. 200 cycles of the standa... | 10/30/2007 |
| 7288913 | Drive wave generation circuit Two standard waves from a standard waveform generation circuit are output via an output gate while being interchanged by a direction selector. The switching operation of the direction selector is controlled by a direction control signal M/I. 200 cycles of the standa... | 10/30/2007 |
| 7158217 | Vehicle radar device In a vehicle radar device, a predetermined number of received light signals output based on a predetermined number of laser beams radiated from a radar sensor are integrated by an integrator to produce an integrated signal. Integration of the predetermined number of... | 01/02/2007 |
| 5881326 | Shutter apparatus and camera apparatus A shutter apparatus is provided wherein openings for defining a secondary aperture are formed in respective shutter blades, such that an amount of light transmitted through the secondary aperture is detected, and the drive force for driving the shutter bl... | 03/09/1999 |
| 5155521 | Counter-driven shutter actuator control circuit A multipurpose interface circuit through which the control current for operating an electromagnetically driven shutter actuator for applications such as a still camera may be precisely defined throughout a shutter actuation sequence (open, hold and close)... | 10/13/1992 |
| 5111230 | Lens shutter driving mechanism using lens driving mechanism A main driving member coupled with a stepping motor is advanced or returned by normal and reverse rotation of the stepping motor. When the main driving member is advanced, a lens driving member follows the main driving member to be advanced to a focused p... | 05/05/1992 |
| 4862203 | Lens driving and shutter opening and closing device for a camera Disclosed is a lens driving and shutter opening and closing device for a camera, which includes a pulse motor adapted to rotate an output member by an angle proportional to the number of pulses of a pulse train supplied thereto and increase an output torq... | 08/29/1989 |
| 4668069 | Exposure control device in a camera An exposure control device in a camera comprises power supply circuit means for producing a temperature signal representative of an amount proportional to the absolute temperature, means for producing a first digital data representative of the film speed,... | 05/26/1987 |
| 4519692 | Exposure and camera control An exposure and camera control system comprising a keyboard for providing input information relating to film parameters and camera type, a light to frequency converter for providing signals having a frequency proportional to the intensity of light to be u... | 05/28/1985 |
| 4502775 | Camera flash photographing control device A camera flash photographing control device having a signal conversion element which generates step wave voltage for which a signal level is gradually varied as time passes, by the operation of a counter which receives a pulse signal. A signal conversion ... | 03/05/1985 |
| 4007467 | Exposure control circuit A light-sensitive element is connected to a capacitor to vary the charging rate of the capacitor in accordance with the light falling on the light-sensitive element. The emitter-collector circuit of a switching transistor is connected in series with the l... | 02/08/1977 |
| 4006484 | Camera systems for providing precise exposures with digital light measurement A camera having a digitally operating structure for determining exposure time according to a digital value corresponding to the light intensity. The camera also has an adjustable diaphragm. The latter is adjusted in accordance with the difference between ... | 02/01/1977 |
