SE8800430D0 - LOUDSPEAKER HAVING OPEN-FILTER FRAME OF CONTINUOUS V V SHAPE IN CROSS SECTION AND WAVE MODULATION PLATE OF SAME DESIGN - Google Patents

LOUDSPEAKER HAVING OPEN-FILTER FRAME OF CONTINUOUS V V SHAPE IN CROSS SECTION AND WAVE MODULATION PLATE OF SAME DESIGN

Info

Publication number
SE8800430D0
SE8800430D0 SE8800430A SE8800430A SE8800430D0 SE 8800430 D0 SE8800430 D0 SE 8800430D0 SE 8800430 A SE8800430 A SE 8800430A SE 8800430 A SE8800430 A SE 8800430A SE 8800430 D0 SE8800430 D0 SE 8800430D0
Authority
SE
Sweden
Prior art keywords
loudspeaker
continuous
open
cross
section
Prior art date
Application number
SE8800430A
Other languages
Swedish (sv)
Other versions
SE8800430L (en
SE466982B (en
Inventor
J Fang
Original Assignee
Jimmy Fang
Peter Tsung Hou Fei
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 Jimmy Fang, Peter Tsung Hou Fei filed Critical Jimmy Fang
Publication of SE8800430D0 publication Critical patent/SE8800430D0/en
Publication of SE8800430L publication Critical patent/SE8800430L/en
Publication of SE466982B publication Critical patent/SE466982B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
    • H04N5/40—Modulation circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Television Systems (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Amplitude Modulation (AREA)

Abstract

1456501 Television INDEPENDENT BROADCASTING AUTHORITY 14 Nov 1973 [15 Aug 1972] 38074/72 Heading H4F The subject-matter of this Specification is identical with that described in Specification 1,456,502, but claim 1 is directed towards a digital signal circuit supplying as an output digital signals representing a carrier signal amplitude modulated by a video frequency signal, the sampling rate of the digital signals being four times the carrier frequency and the samples corresponding with the positive and negative peaks and the zero transistions of the carrier, and a digital single- or vestigial-side band filter receiving the output from the circuit.
SE8800430A 1988-03-08 1988-02-10 SPEECH ELEMENTS INCLUDING A CHASSIS, A SOUND PRODUCING CONIC BODY, OK AND PERMANENT MAGNET AND USE OF THE SPEAKER ELEMENT SE466982B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883807472 DE3807472C1 (en) 1988-03-08 1988-03-08

Publications (3)

Publication Number Publication Date
SE8800430D0 true SE8800430D0 (en) 1988-02-10
SE8800430L SE8800430L (en) 1989-08-11
SE466982B SE466982B (en) 1992-05-04

Family

ID=6349094

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8800430A SE466982B (en) 1988-03-08 1988-02-10 SPEECH ELEMENTS INCLUDING A CHASSIS, A SOUND PRODUCING CONIC BODY, OK AND PERMANENT MAGNET AND USE OF THE SPEAKER ELEMENT

Country Status (4)

Country Link
DE (1) DE3807472C1 (en)
FR (1) FR2628281B1 (en)
GB (2) GB1456501A (en)
SE (1) SE466982B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519001A (en) * 1981-10-27 1985-05-21 Ampex Corporation Apparatus for providing dropout compensation and error concealment in a PAL format video information signal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB501152A (en) * 1937-09-20 1939-02-22 Gen Electric Co Ltd Improvements in loud speakers
NL282835A (en) * 1963-01-22
US3909530A (en) * 1974-01-07 1975-09-30 Federal Sign And Signal Corp Loudspeaker with shallow re-entrant grille-like horn
US3995125A (en) * 1975-06-30 1976-11-30 Wheelock Signals, Inc. Protective grille
US3989909A (en) * 1975-09-15 1976-11-02 General Electric Company Grill for audio loudspeakers and the like
FR2363255A1 (en) * 1976-08-27 1978-03-24 Bose Corp LOUDSPEAKER AND METHOD OF MANUFACTURING
US4439644A (en) * 1981-11-24 1984-03-27 Edmund M. Jaskiewicz Loud speaker enclosure
DE8628254U1 (en) * 1986-10-23 1987-11-26 Plewa, Jens

Also Published As

Publication number Publication date
GB2215164B (en) 1992-03-18
GB8802815D0 (en) 1988-03-09
FR2628281A1 (en) 1989-09-08
FR2628281B1 (en) 1990-07-27
SE8800430L (en) 1989-08-11
GB2215164A (en) 1989-09-13
SE466982B (en) 1992-05-04
DE3807472C1 (en) 1989-06-08
GB1456501A (en) 1976-11-24

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