Semiconductor Components Industries, LLC

Sanyo Electric Co., Ltd.

Hajime Mizukami

Atsushi Wada

Shigeto Kobayashi

Mitsuaki Hatakeyama

Kouichi Yamada

Hiromitsu Niwa

Yoshinari Kiriyama

Akira Shimizu

A power supply detection circuit detects power feeding to a VBUS terminal from the outside. A charger detection circuit detects the kind of charger by monitoring voltages of a DP terminal and a DM terminal. A control unit adjusts timing and instructs the charger detection circuit to start a charger kind detection process after a notification of detection of power feeding is received from the power supply detection circuit.

Method for detecting a type of charger coupled to an input-output circuit and input-output circuit therefor

A signal line from a common terminal, which allows the insertion of a terminal of a cable for transmitting high-frequency signals or the insertion of a terminal of a cable dedicated to the transmission of audio signals, is branched into one line which is connected to one end of a high-frequency signal switch (USB switch) and the other line which is connected to one end of an audio signal switch (audio switch), respectively. A signal line from the other end of the high-frequency signal switch is connected to a target circuit. A signal line from the other end of the audio signal switch in a primary hierarchical position is branched into a plurality of lines, and the respective plurality of lines are connected to one end of audio signal switches (e.g., headphone switch and microphone switch) in a secondary hierarchical position. And the respective signal lines from the other end of the plurality of audio signal switches of secondary hierarchical position are connected to respective target circuits.

Switch circuit

An identification terminal voltage detecting circuit detects a voltage of an identification terminal. A video switch is inserted into a signal line connecting a video circuit included in an internal circuit and the identification terminal. When a voltage representing that a video cable is connected to a connector is detected, and then a voltage representing that the video cable is terminated with specified impedance is detected, the control unit turns on the video switch.

Input-output circuit

A power supply detection circuit detects power feeding to a VBUS terminal from the outside. A charger detection circuit specifies the kind of charger by detecting the voltages of a DP terminal and a DM terminal. The charger detection circuit detects open, pull-up, pull-down of at least one of the DP terminal and the DM terminal or formation of a short circuit between both the terminals.

A method of efficiently controlling an image sensing apparatus from a personal computer machine includes the steps of defining a control data file for storage of exposure data and image processing data to be supplied to the image sensing apparatus from the computer machine, storing initial values of the exposure data and the image processing data in the control data file, supplying the exposure data and the image processing data stored in the control data file to the image sensing apparatus, receiving the image data signals from the image sensing apparatus screen by screen and displaying the image data on a monitor screen, computing optimal values of the exposure data and the image processing data for each of a drive timing of the solid state image sensor and processing conditions of the image data signals based on the image data signals, and repeating the supply step, the display step, the computation step and the resetting step to display the image data on the monitor screen in a given period until a command to establish production of a specific image data signal is received.

Growing community of inventors

Gifu, Japan

Hajime Mizukami