Title:
Personal computer
Document Type and Number:
Japanese Patent JP6087332
Kind Code:
B2
Abstract:
Proposed is a digital sound system most suitable for a digital speaker device for directly converting analog sound by a circuit using a £ modulator and a mismatch shaping filter circuit to output a plurality of digital signals and a plurality of speakers driven by the plurality of digital signals. Provided is a digital speaker driving device characterized in that the device is constituted of a £ modulator, a post filter, s driving circuits, and a power supply circuit for supplying power to the £ modulator, the post filter and the s driving elements and that the s driving circuits are adapted to s digital signal terminals.
Inventors:
Junichi Okamura
Akira Yasuda
Akira Yasuda
Application Number:
JP2014211709A
Publication Date:
March 01, 2017
Filing Date:
October 16, 2014
Export Citation:
Assignee:
Trigence semiconductor Co., Ltd.
International Classes:
H04R3/00; G10L19/00; H03M3/02; H04R1/02
Domestic Patent References:
| JP2004222251A | ||||
| JP10013986A | ||||
| JP5176387A | ||||
| JP2002216026A | ||||
| JP57138293A | ||||
| JP3066297A | ||||
| JP10051888A | ||||
| JP56048698A | ||||
| JP2006339852A |
Foreign References:
| WO2007135928A1 | ||||
| US20040130472 | ||||
| US5592559 | ||||
| US5862237 | ||||
| US20030018790 | ||||
| US6160894 |
Attorney, Agent or Firm:
Takahashi Hayashi & Partners