FR2304216A1 - Filter providing multiple outputs - has each output in pulsed form and is adapted for use in multiple loudspeaker systems - Google Patents

Filter providing multiple outputs - has each output in pulsed form and is adapted for use in multiple loudspeaker systems

Info

Publication number
FR2304216A1
FR2304216A1 FR7507398A FR7507398A FR2304216A1 FR 2304216 A1 FR2304216 A1 FR 2304216A1 FR 7507398 A FR7507398 A FR 7507398A FR 7507398 A FR7507398 A FR 7507398A FR 2304216 A1 FR2304216 A1 FR 2304216A1
Authority
FR
France
Prior art keywords
signal
output
filter
polynomials
loudspeaker systems
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.)
Granted
Application number
FR7507398A
Other languages
French (fr)
Other versions
FR2304216B1 (en
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.)
FORET JACQUES
Original Assignee
FORET JACQUES
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 FORET JACQUES filed Critical FORET JACQUES
Priority to FR7507398A priority Critical patent/FR2304216A1/en
Publication of FR2304216A1 publication Critical patent/FR2304216A1/en
Application granted granted Critical
Publication of FR2304216B1 publication Critical patent/FR2304216B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/34—Networks for connecting several sources or loads working on different frequencies or frequency bands, to a common load or source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

An electonic filter takes a single input and after filtering it provides outputs of different frequency ranges. The design is particularly directed towards systems where the signal is eventually reassembled as in the case of sound reproduction where several loudspeakers having differing responses may be required. The filter has a transfer function h deg. (r)=F(p)/Q(p) where F(p) and Q(p) are polynomials such that Q(p)=pn(A)+F(p). A(p) and F(p) are polynomials of the same degree. Each output line carries bursts of signal proportional to the input amplitude, and the signal free interval includes a fixed amplitude marker signal having a sense inverse to that of the information bursts.
FR7507398A 1975-03-10 1975-03-10 Filter providing multiple outputs - has each output in pulsed form and is adapted for use in multiple loudspeaker systems Granted FR2304216A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7507398A FR2304216A1 (en) 1975-03-10 1975-03-10 Filter providing multiple outputs - has each output in pulsed form and is adapted for use in multiple loudspeaker systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7507398A FR2304216A1 (en) 1975-03-10 1975-03-10 Filter providing multiple outputs - has each output in pulsed form and is adapted for use in multiple loudspeaker systems

Publications (2)

Publication Number Publication Date
FR2304216A1 true FR2304216A1 (en) 1976-10-08
FR2304216B1 FR2304216B1 (en) 1980-11-07

Family

ID=9152344

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7507398A Granted FR2304216A1 (en) 1975-03-10 1975-03-10 Filter providing multiple outputs - has each output in pulsed form and is adapted for use in multiple loudspeaker systems

Country Status (1)

Country Link
FR (1) FR2304216A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0744829A1 (en) * 1995-05-22 1996-11-27 STMicroelectronics S.r.l. A high-pass filter, particularly for cancelling out the offset in a chain of amplifiers
DE10153740B4 (en) * 2001-10-31 2006-05-24 Infineon Technologies Ag Method and device for low-pass filtering

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0744829A1 (en) * 1995-05-22 1996-11-27 STMicroelectronics S.r.l. A high-pass filter, particularly for cancelling out the offset in a chain of amplifiers
US5815037A (en) * 1995-05-22 1998-09-29 Sgs-Thomson Microelectronics S.R.L. High-pass filter, particularly for canceling out the offset in a chain of amplifiers
DE10153740B4 (en) * 2001-10-31 2006-05-24 Infineon Technologies Ag Method and device for low-pass filtering

Also Published As

Publication number Publication date
FR2304216B1 (en) 1980-11-07

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Legal Events

Date Code Title Description
ST Notification of lapse