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.

Touch panel apparatus

Abstract: A touch panel apparatus of the type in which a plurality of photo-detecting pairs generate a plurality of detecting beams which cross the display surface and including a circuit for reducing the sensitivity of the photo-detecting pairs at the corners of the display surface to prevent malfunction due to reflected beams caused by the relatively higher intensity beams at those locations resulting from the relatively shorter beam lengths

Resonant excitation of a quantum dot strongly coupled to a photonic crystal nanocavity.

Abstract: We describe the resonant excitation of a single quantum dot that is strongly coupled to a photonic crystal nanocavity. The cavity represents a spectral window for resonantly probing the optical transitions of the quantum dot. We observe narrow absorption lines attributed to the single and biexcition quantum dot transitions and measure antibunched population of the detuned cavity mode [g^(2)(0)=0.19].

Multi-speaker audio system and automatic control method

Abstract: A sound produced at the location of a listener is captured by a microphone in each of a plurality of speaker devices. A sever apparatus receives an audio signal of the captured sound from all speaker devices, and calculates a distance difference between the distance of the location of the listener to the speaker device closest to the listener and the distance of the listener to each of the plurality of speaker devices. When one of the speaker devices emits a sound, the server apparatus receives an audio signal of the sound captured by and transmitted from each of the other speaker devices. The server apparatus calculates a speaker-to-speaker distance between the speaker device that has emitted the sound and each of the other speaker devices. The server apparatus calculates a layout configuration of the plurality of speaker devices based on the distance difference and the speaker-to-speaker distance.

Audio transmission, recording and reproducing system

Abstract: An audio recording and reproducing apparatus includes a controller for controlling the entire behaviors, hard disc for write and read of audio data, audio compression/expansion circuit for expanding compressed audio data, and external I/O port. The audio recording and reproducing apparatus is connected to a network service center to obtain desired music data from storage of the network service center and to store it in the hard disc.

Overview of Elliptic Curve Cryptography

Abstract: In this article, we look at the elliptic curve cryptography, which is believed to be one of the most promising candidates for the next generation cryptographic tool. The following issues are addressed here; 1. Discrete Logarithm Problem in finite fields 2. Elliptic Curve Discrete Logs 3. Implementation of ECDLP Cryptographic Schemes 4. Attacks on EC Cryptosystems 5. Minimum Requirement for Secure EC Cryptosystems 6. Standardization and Commercialization of EC Cryptosystems 7. Construction of Elliptic Curves