Sanyo Electric Co., Ltd.

Other

Panasonic Intellectual Property Management Co., Ltd.

Kazuo Ishimoto

Takeshi Nakashima

Tomomichi Nakai

Takeshi Mori

Tohru Watanabe

Yoshihito Higashitsutsumi

Toshihiro Furusawa

Takehito Ike

Takayoshi Abe

Hiroshi Saeki

Kazuo Naganawa

In the present invention, a main switch circuit () is provided between an electric power line (PL), to which voltage outputted from a solar cell () is applied, and a battery module (). A protection circuit () turns OFF the main switch circuit () to protect the battery module () from overcharging when the voltage (VBAT) of the battery module () is equal to or greater than an upper limit voltage. The voltage outputted from the solar cell () is set so as to be greater than the upper limit voltage to allow the battery module () to be charged to the upper limit voltage. When a charge ON command signal has been received, a control unit () turns ON only a sub-switch circuit () to introduce current from the solar cell () into a parallel circuit () and to suppress the voltage (VPL) of the power line (PL) to less than the upper limit voltage before turning ON the main switch circuit ().

Switching device

A ground fault detection circuit includes: a first switch circuit that connects/disconnects a first path between a positive bus bar and a ground potential section, the positive bus bar being connected to positive electrodes of secondary battery units through a field-effect transistor including a parasitic diode; a second switch circuit that connects/disconnects a second path between a negative bus bar and a ground potential section, the negative bus bar being connected to negative electrodes of the secondary battery units; and a ground fault detection unit that detects a ground fault of the positive bus bar or the negative bus bar based on an electric current flowing through the first path or the second path.

Ground fault detection circuit and ground fault detection apparatus

A solid-state image pickup apparatus is provided having a solid-state image pickup device for generating an information charge in response to an image of which light was received, a drive circuit for transferring the information charge accumulated in the solid-state image pickup device, and outputting the information charge, a power supply for generating a predetermined voltage in accordance with an input amount of voltage booster pulses and supplying the predetermined voltage to the solid-state image pickup device and the drive circuit and a pulse generator circuit for generating and supplying the voltage booster pulses to the power supply. The pulse generator circuit stops generation of the voltage booster pulses in accordance with a termination of an information charge readout operation of one screen pickup period from the image pickup device, and when the drive circuit executes an electronic shutter operation, which discharges the information charge that has accumulated in the solid-state image pickup device to resume accumulation, the voltage booster pulses are generated over a predetermined voltage booster period prior to the electronic shutter operation at a higher frequency than the information charge readout operation to boost the voltage of the power supply.

Solid-state image pickup apparatus

Image information can be supplied from an image pickup apparatus to computer equipment at high speed. A solid state image pickup device is vertically driven by a vertical drive circuit and horizontally driven by a horizontal drive circuit . The vertical drive circuit operates at a given cycle in response to a vertical timing signal VT from a vertical timing control circuit which operates according to a frequency dividing clock DCK with a given cycle. The horizontal drive circuit operates in response to a horizontal timing signal HT from a horizontal timing control circuit to be driven in response to a transfer trigger TR which is supplied from the computer equipment. An exposure control circuit responds to a horizontal transfer flag HF which is supplied from the horizontal timing control circuit and determines timing for discharge driving excluding a period of the horizontal transfer drive.

Image pickup apparatus for controlling the discharge of information charges in the image pickup apparatus

An illumination light-emitting member is made up of an LED group obtained by connecting a plurality of LEDs in series with each other, and illuminates the surface to be sensed including an image. A solid-state image sensing element receives light reflected by the surface to be sensed illuminated by the illumination light-emitting member, and outputs a corresponding sensed image signal. A drive circuit controls driving of the solid-state image sensing element to sense the image. A booster circuit serves as a power supply circuit for the LED group, and generates a high voltage by adding a predetermined power supply voltage in the apparatus, and a frequency-divided pulse obtained by frequency-dividing a predetermined pulse output from the drive circuit.

Self-Illumination scanner apparatus

A first digital processor (13) generates luminance data Y and color difference data U, V, using image data D1. The processor (13) further generates separated luminance data Y1, Y2 by halving the luminance data Y, and generates a compound color difference data C by combining the color difference data U, V for output. An JPEG encoder 13 compresses the separated luminance data Y1, Y2 and the compound color difference data C to generate compressed luminance data y1, y2 and compressed color difference data c. A modulator 15 modulates the compressed luminance data y1, y2 and the compressed color difference data c to generate luminance modulated signals m1, m2 and color difference modulated signal mc. A recording/reproducing section 16 records the luminance modulated signals m1, m2 and the color difference modulated signal mc in parallel onto the first to third recording tracks of a magnetic tape (20).

Growing community of inventors

Moriguchi, Japan

Kazuo Ishimoto