Lenovo (singapore) Pte. Ltd.

Hiroyuki Uchida

Mitsuhiro Yamazaki

Susumu Shimotono

Takayuki Katoh

Mizuho Tadokoro

Kazuhiro Kosugi

Takuroh Kamimura

Atsushi Ohyama

Hideshi Tsukamoto

Ken Sasaki

Hiroki Oda

Yuhsaku Sugai

Yasuhiro Horiuchi

Masaki Ohshima

Atsushu Miyashita

Atsushi Miyashita

A method, apparatus and computer program product are disclosed. The method includes detecting ambient light around an electronic device, determining whether a user is present based on the ambient light, and controlling an operation of the electronic device. The apparatus includes a component that consumes electric power, a light sensor that detects ambient light, a frequency analyzing unit that specifies a frequency component, and a control unit that determines whether a user is present and controls an operation of the component. The computer program product includes code to perform detecting ambient light around an electronic device, determining whether a user is present based on the ambient light, and controlling an operation of the electronic device.

Method, apparatus and computer program product for user detection and operation control

A computer implemented method resumes a computer from a power-saving state in a short time. Prior to shifting to a power-saving state, a drive sets a status flag indicating a loading state of a disk at a flash memory. For resumption from the power-saving state, the BIOS requests a ready notification from the drive. When it is determined that the status flag indicates not-loading of a disk, the drive skips the detection processing of the disk including initialization of a read/write circuit and a servo mechanism such as a spindle motor and sends a ready notification indicating not-loading of the disk to the BIOS. Receiving the ready notification, the BIOS can continue the resume processing.

Shortening resume time from a power-saving state

A method and system are provided for thermal management of a portable computing apparatus. Accelerometers are provided to detect changes in attitude, and temperature sensors are provided to detect changes in temperature. A fan is used to cool the internal temperature of the electronic components of the computer. In response to lift of the computer from a stationary surface, the computer may transition to an alternative state of operation. The transition may include the change of the speed of the fan and/or adjustment of the processor clock.

Thermal management of a personal computing apparatus

Growing community of inventors

Sagamihara, Japan

Hiroyuki Uchida