The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2010
Filed:
Jul. 31, 2007
Shinichi Honda, Tokyo, JP;
Yoshikazu Takahashi, Saitama, JP;
Kaoru Yamanoue, Tokyo, JP;
Takashi Toyoda, Tokyo, JP;
Nobuo Sasaki, Kanagawa, JP;
Shinichi Honda, Tokyo, JP;
Yoshikazu Takahashi, Saitama, JP;
Kaoru Yamanoue, Tokyo, JP;
Takashi Toyoda, Tokyo, JP;
Nobuo Sasaki, Kanagawa, JP;
Sony Computer Entertainment Inc., Tokyo, JP;
Abstract
There is provided an information processing apparatus in which a CPU and an audio processing unit are coupled by a bus. The audio processing unit includes a ring buffer that temporarily retains audio data, and performs an input/output process of the audio data. An interrupt signal generator generates a buffer empty signal, when the audio data is output from a buffer in the ring buffer and the buffer is empty, decimates the buffer empty signal in accordance with a sampling frequency of audio, and then feeds the interrupt signal that survives the decimation to the CPU. The CPU, upon receiving the buffer empty signal, issues a DMA transfer instruction for writing the audio data into the empty buffer in the ring buffer.