Minolta Camera Kabushiki Kaisha

Hirokazu Kuroda

Shuji Izumi

Toshihiko Ishimura

Reiji Seki

Akira Okuno

Noriyuki Ishii

Masaaki Nakai

Akihiko Fujino

Katsuyuki Nanba

Takehiro Katoh

Masayasu Hirano

Hideo Kajita

Tetsuro Ohya

Tatsuya Ishida

Hiroshi Yoshino

A display system for a camera that includes both a segment display portion and a dot matrix display portion. The two different display systems are driven by different duty ratios for assuring clearer presentation and quicker recognition by the photographer. The disclosure also includes an energy-saving control system for such a combination display system where the more energy-consuming dot matrix portion is stopped operating while the less energy-consuming segment portion remains operation after a predetermined time since the last operation of any switch of the camera. The disclosure further includes an elaborate analog display that clearly shows exposure parameters of the camera.

Display system for camera having segment display portion and dot matrix

A connecting device for establishing electric connection between an electronic appliance and an IC card loaded in position in the electronic appliance, which can prevent possible operation in error and breakdown of a component circuit of the IC card when the IC card is loaded into the electronic appliance. The device includes several terminals provided on the IC card, corresponding terminals provided on the electronic appliance, and a pair of switch terminals located on the electronic appliance for contact with the IC card. The terminals of the IC card and/or the electronic appliance are arranged such that, upon loading of the IC card, at first supply of power to the IC card from the electronic appliance and resetting of the IC card may take place. Signals of the switch terminals which are operated at a last stage eby the IC card are applied to cause activation of the electronic appliance and initialization of the IC card.

Connecting device for IC card

A power supply system for a camera supplies electrical power to a light measuring circuit, a display circuit and others. During a hold state before the camera turns into a standby state, the power supply system supplies a boosted electrical power intermittently to the light measuring circuit, the display circuit and others, so that photographic information such as shutter speed and aperture value based on the measurement of the light measuring circuit are displayed on a display and power consumption in the hold state can be made small.

Power supply system for a camera

A camera comprises a main switch, a battery, a battery checking circuit, a display device, a timer and a controller. The camera can be operative by the turn ON of the main switch and can not be operative by the turn OFF of the main switch. The battery supplies an electrical power to circuits in the camera. The battery checking circuit checks a state of the battery. The timer counts a predetermined period of time in response to the turn ON of the main switch. The controller controls the display device based on a result of the battery checking circuit to display the state of the battery during the predetermined period of time and turning off a display of the display device if the state of the battery is better for the camera than a predetermined state after a lapse of the predetermined period of time. Thereby, it is easy to see the other display of the camera in the display device.

Camera with display device

Growing community of inventors

Osaka, Japan

Hirokazu Kuroda