JPS64893A - Driving device for digital speaker - Google Patents

Driving device for digital speaker

Info

Publication number
JPS64893A
JPS64893A JP15606687A JP15606687A JPS64893A JP S64893 A JPS64893 A JP S64893A JP 15606687 A JP15606687 A JP 15606687A JP 15606687 A JP15606687 A JP 15606687A JP S64893 A JPS64893 A JP S64893A
Authority
JP
Japan
Prior art keywords
signal
voice coil
supplied
oversampling
digital signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15606687A
Other languages
Japanese (ja)
Other versions
JPH01893A (en
Inventor
Jiro Nakaso
Yoshiaki Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP15606687A priority Critical patent/JPS64893A/en
Publication of JPH01893A publication Critical patent/JPH01893A/en
Publication of JPS64893A publication Critical patent/JPS64893A/en
Pending legal-status Critical Current

Links

Landscapes

  • Circuit For Audible Band Transducer (AREA)
  • Complex Calculations (AREA)

Abstract

PURPOSE:To prevent the generation of loopback noise by driving a voice coil by the control system for negative feedback, which uses a difference signal between an oversampled input digital signal and the position data signal of the voice coil as an error signal. CONSTITUTION:The signal, demodulated by a receiving part RD, is supplied to an oversampling filter OSD through a series parallel conversion circuit SPCa. The filter OSD expands input data X1-X16 to output data Y1-Y18, and supplies them to a digital signal processor DSP. Position data from the series parallel conversion circuit SPCb is supplied to the processor DSP as well, and the position detection signal of the displaced voice coil 12 is supplied to the circuit SPCb. The processor DSP adds the difference signal between the voice coil position detection signal and the signal obtained by oversampling the input digital signal to the signal obtained by the oversampling, and outputs it to a speaker driving part DRV, and the coil 12 corresponding to the figure of the digital signal, is driven by the driving part DRV.
JP15606687A 1987-06-23 1987-06-23 Driving device for digital speaker Pending JPS64893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15606687A JPS64893A (en) 1987-06-23 1987-06-23 Driving device for digital speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15606687A JPS64893A (en) 1987-06-23 1987-06-23 Driving device for digital speaker

Publications (2)

Publication Number Publication Date
JPH01893A JPH01893A (en) 1989-01-05
JPS64893A true JPS64893A (en) 1989-01-05

Family

ID=15619556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15606687A Pending JPS64893A (en) 1987-06-23 1987-06-23 Driving device for digital speaker

Country Status (1)

Country Link
JP (1) JPS64893A (en)

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