Sony Broadcast & Professional Research Laboratories

About: Sony Broadcast & Professional Research Laboratories is a company organization based out in Taipei, Taiwan. It is known for research contribution in the topics: Signal & Layer (electronics). The organization has 38708 authors who have published 63864 publications receiving 865637 citations.

Kinetic model for degradation of light-emitting diodes

Abstract: We present a kinetic model for the optical output degradation of light-emitting diodes based on the carrier-recombination enhanced defect motion. Our model leads to analytical solutions and universal curves for the optical output power and the defect density as a function of the normalized aging time with the initial quantum efficiency as the determining parameter. The theoretical results explain very well the time dependence of the II-VI light-emitting diodes under constant current aging condition. The faster aging rate with increasing bias current or temperature is also investigated both experimentally and theoretically, resulting in a very good agreement. Our model provides a quantitative description of the light-emitting diode aging characteristics for compound semiconductors in the presence of electron-hole recombination-enhanced defect generation.

An empirical exploration of a neural oscillator for biped locomotion control

Abstract: Humanoid research has made remarkable progress during the past 10 years. However, currently most humanoids use the target ZMP (zero moment point) control algorithm for bipedal locomotion, which requires precise modeling and actuation with high control gains. On the contrary, humans do not rely on such precise modeling and actuation. Our aim is to examine biologically related algorithms for bipedal locomotion that resemble human-like locomotion. This paper describes an empirical study of a neural oscillator for the control of biped locomotion. We propose a new neural oscillator arrangement applied to a compass-like biped robot. Dynamic simulations and experiments with a real biped robot were carried out and the controller performs steady walking for over 50 steps. Gait variations resulting in energy efficiency was made possible through the adjustment of only a single neural activity parameter. Aspects of adaptability and robustness of our approach are shown by allowing the robot to walk over terrains with varying surfaces with different frictional properties. Initial results suggesting optimal amplitude for dealing with perturbation are also presented.

Solid-state imaging device, method for producing same, and camera

Abstract: A solid-state imaging device includes a substrate having a first surface and a second surface, light being incident on the second surface side; a wiring layer disposed on the first surface side; a photodetector formed in the substrate and including a first region of a first conductivity type; a transfer gate disposed on the first surface of the substrate and adjacent to the photodetector, the transfer gate transferring a signal charge accumulated in the photodetector; and at least one control gate disposed on the first surface of the substrate and superposed on the photodetector, the control gate controlling the potential of the photodetector in the vicinity of the first surface.

Television receiver with selective menu display

Abstract: A television receiver with a menu display function has a BS tuner for producing a video signal and a sound signal from a received television signal that is broadcast from a satellite. The television receiver has a microcomputer for adding a menu display signal to the video signal so that menu information can be displayed on a display unit. The menu display signal represents a plurality of menu items in each of selectable menu modes, and the menu items are selectively erasable from the display unit.

Electro-optical device and electronic apparatus

Abstract: PROBLEM TO BE SOLVED: To supply an electro-optical device performing high quality image displaySOLUTION: An electro-optical device includes: a scanning line drive circuit 38; a clock buffer circuit 203 for shaping a waveform of a clock signal CLY; first constant potential wiring VSS1 for supplying a first constant potential to the scanning line drive circuit 38; and second constant potential wiring VSS2 for supplying the first constant potential to the clock buffer circuit 203 The first constant potential wiring VSS1 and the second constant potential wiring VSS2 are electrically separated from each other A potential of the first constant potential wiring VSS1 can be maintained within a normal range even when a potential of the second constant potential wiring VSS2 fluctuates due to behavior of the clock buffer circuit 203 More specifically, power source fluctuation noise due to the clock buffer circuit 203 on the scanning line drive circuit 38 can be suppressed As a result of this, disturbance of a display image in a display area 34 can be suppressed, and high quality image display can be performed