Nokia Technologies Oy

Dialog Semiconductor Gmbh

Apple Inc.

Advanced Green Computing Machines-ip, Limited

Nokia Corporation

Iwatt Inc.

Diaglo Semiconductor Inc.

David H Nguyen

Fuqiang Shi

Daniel Ashbrook

Yong Li

Jianming Yao

Kai-Wen Chin

Audrey Desjardins

Hien Huu Bui

Kenton M Lyons

Tao Li

Sean M White

John William Kesterson

Pengju Kong

Yimin Chen

Cong Zheng

Tung M Nguyen

Shigeyuki Seko

Juyoung Yoon

Kent Lyons

Dexter W Francis

Seung Wook Kim

Junjie Zheng

Robert Andrew Howard

Stephen Peart

Xiaolin Gao

Guang Feng

Duc Doan

Harold James Welch

Jiang Chen

Mengfei Liu

Andrew Kwok-Cheung Lee

Eric Christopher Anderson

David W Shen

Richard Au

Tipatat Chennavasin

Jiandong Zhang

Matthew Herron

Andrew L Carter

Praveen Krishnan

Yong Xiong Lin

Judy Sha

David M Bradley

Vijo Cherian

Tsaifa Yao

Melodie Vidal

Najaf Rizvi

Matthew Humphreys

Syed Najaf Rizvi

Adam Drobot

Ray Riley

A switching power converter is provided that communicates with a mobile device to receive a value of a load detection current. The switching power converter adjusts the cycling of a power switch until a constant current mode of operation is entered with a known output current driving the mobile device. The switching power converter subtracts the load current from the output current to measure a soft-short circuit current.

Short circuit and soft short protection for data interface charging

A flyback converter is provided that detects a load-transient-produced increase in the output current to more quickly detect and respond to the load transient.

Flyback converter with fast load transient detection

A method comprising entering a passive viewing state of an apparatus, receiving information indicative of a first input, determining a first operation based, at least in part, on a passive viewing state and the first input, performing the first operation, receiving environmental sensor information, determining that the environmental sensor information indicates that the apparatus is actively viewed by a user, entering of an active viewing state of the apparatus based, at least in part, on the determination that the environmental sensor information indicates that the apparatus is actively viewed by the user, receiving information indicative of a second input, the second input being substantially the same as the first input, determining a second operation based, at least in part, on the active viewing state and the second input, the second operation being different from the first operation, and performing the second operation is disclosed.

Determination of an operation

A flyback converter is provided that compares a drain-to-source voltage of a synchronous rectifier switch transistor to a negative threshold voltage to detect whether the synchronous rectifier switch transistor has a partially-open or an open fault condition. The flyback converter also compares a gate terminal voltage of a gate driver to the synchronous rectifier switch transistor to a positive threshold voltage to detect whether the synchronous rectifier switch transistor has a gate open or a gate short-circuit fault condition.

Flyback converter with synchronous rectifier switch fault detection

An output current calibration is disclosed to increase the accuracy and precision of the constant-current mode for a flyback converter.

Flyback converter with output current calibration

A method, apparatus and computer program product provide an indication to a first user as to the content presented to another user by the head mounted display of the other user. In the context of a method, information is received relating to content presented to a second user by a head mounted display of the second user. Based upon the information, the method also includes causing, with a processor, an indication to be presented to a first user identifying the content presented to the second user by the head mounted display of the second user.

Method and apparatus for providing an indication regarding content presented to another user

A method comprising determining a first display angle of a display comprised by an apparatus with respect to gravity, determining a first contiguous subset of a sequential arrangement of information based, at least in part, on the first display angle, performing a first operation based, at least in part, on the first contiguous subset, determining a second display angle of the display with respect to gravity, the second display angle being different from the first display angle, determining a second contiguous subset of the sequential arrangement based, at least in part, on the second display angle, and performing a second operation based, at least in part, on the second contiguous subset is disclosed.

Determination of a display angle of a display

An output voltage calibration circuit and technique is disclosed to increase the accuracy and precision of the constant-voltage mode for a flyback converter.

Flyback converter with output voltage calibration

A multi-node computer system, comprising: a plurality of nodes, a system control unit and a carrier board. Each node of the plurality of nodes comprises a processor and a memory. The system control unit is responsible for: power management, cooling, workload provisioning, native storage servicing, and I/O. The carrier board comprises a system fabric and a plurality of electrical connections. The electrical connections provide the plurality of nodes with power, management controls, system connectivity between the system control unit and the plurality of nodes, and an external network connection to a user infrastructure. The system control unit and the carrier board provide integrated, shared resources for the plurality of nodes. The multi-node computer system is provided in a single enclosure.

High density multi node computer with improved efficiency, thermal control, and compute performance

A method, apparatus and computer program product are provided to facilitate the identification of one or more media files stored on respective ones of a plurality of user devices. In the context of a method, a current context is determined. The method also automatically identifies one or more media files stored on respective ones of a plurality of user devices based upon a relationship between a context associated with the respective media file and the current context. The method also causes the one or more media files to be transferred to an output device for presentation. A corresponding apparatus and computer program product are also provided.

Method and apparatus for identifying media files based upon contextual relationships

A method comprising precluding display of information on a head mounted display worn by a user, receiving information indicative of an eye orientation of the user, receiving information indicative of a head orientation of the user, determining that a difference between the eye orientation and a centered eye orientation exceeds a threshold eye orientation difference, determining that a difference between the head orientation and an anatomical position head orientation exceeds a threshold head orientation difference, and causing display of a representation of information on the head mounted display based, at least in part, on the determination that the eye orientation exceeds the threshold eye orientation difference from the centered eye orientation and the determination that the head orientation exceeds the threshold head orientation difference from the anatomical position head orientation is disclosed.

Display of information on a head mounted display

A line ripple compensation technique is provided for a switching power converter operating in both a pulse frequency mode of operation and a pulse width modulation mode of operation.

Line ripple compensation for switching power converters

A power supply control system delivers regulated power to a load via a delivery cable. The power supply control system includes a power stage operable to deliver power to the load at a first regulated voltage level and a second regulated voltage level. A cable offset voltage unit generates an offset voltage signal representing a drop in voltage across the delivery cable. The offset voltage signal is generated based on a first cable drop compensation value when the power stage is operated to deliver power at the first regulated voltage level and based on a second cable drop compensation value when the power stage is operated to deliver power at the second regulated voltage level. A controller coupled to the power stage and the cable offset voltage unit controls the power stage to deliver the regulated power to the load based at least in part on the offset voltage signal.

Adaptive cable drop compensation based on scalable cable offset factor

Growing community of inventors

Sunnyvale, CA, United States of America

David H Nguyen