Title:
AUDIO DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/118643
Kind Code:
A1
Abstract:
Disclosed is an audio device wherein: values of currents flowing in output terminals of amplifying circuits (4a, 4b) are compared with each other when same phase and opposite phase detection signals are outputted to the amplifying circuits (4a, 4b), respectively; and on the basis of results of the comparison, whether a subwoofer (3) is connected or not is determined on the basis of determination data obtained by associating magnitude relationship of the values of the currents with whether the subwoofer (3) is connected or not with respect to the output terminals of the amplifying circuits (4a, 4b), said currents flowing in the output terminals of the amplifying circuits (4a, 4b) when the same phase and opposite phase detection signals are outputted to the amplifying circuits (4a, 4b), respectively.
Inventors:
WATANABE KYOTA (JP)
Application Number:
PCT/JP2014/052773
Publication Date:
August 13, 2015
Filing Date:
February 06, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04R29/00; H04R3/00
Foreign References:
| JPH05199594A | 1993-08-06 | |||
| JP2006279753A | 2006-10-12 | |||
| JPH0193299A | 1989-04-12 | |||
| JPH042209A | 1992-01-07 | |||
| JP2013157664A | 2013-08-15 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
Hideaki Tazawa (JP)
Hideaki Tazawa (JP)
Download PDF:
Previous Patent: ACTUATOR AND ASSIST APPARATUS
Next Patent: SUPRAMOLECULAR STRUCTURE OF ACRYLIC ACID, AND Li-ION BATTERY USING SAME
Next Patent: SUPRAMOLECULAR STRUCTURE OF ACRYLIC ACID, AND Li-ION BATTERY USING SAME