AU4542572A – Controlled delay line signal processor for sound reproduction
– Google Patents
AU4542572A – Controlled delay line signal processor for sound reproduction
– Google Patents
Controlled delay line signal processor for sound reproduction
Info
Publication number
AU4542572A
AU4542572A
AU45425/72A
AU4542572A
AU4542572A
AU 4542572 A
AU4542572 A
AU 4542572A
AU 45425/72 A
AU45425/72 A
AU 45425/72A
AU 4542572 A
AU4542572 A
AU 4542572A
AU 4542572 A
AU4542572 A
AU 4542572A
Authority
AU
Australia
Prior art keywords
signal processor
delay line
line signal
sound reproduction
controlled delay
Prior art date
1971-08-13
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.)
Expired
Application number
AU45425/72A
Other versions
AU477383B2
(en
Inventor
Morton Schiffman Murray
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.)
CAMBRIDGE RESEARCH
Original Assignee
S D DT LIQUIDATING PARTNERSHIP
Cambridge Research and Development Group
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.)
1971-08-13
Filing date
1972-08-09
Publication date
1974-02-14
1972-08-09
Application filed by S D DT LIQUIDATING PARTNERSHIP, Cambridge Research and Development Group
filed
Critical
S D DT LIQUIDATING PARTNERSHIP
1974-02-14
Application granted
granted
Critical
1974-02-14
Publication of AU4542572A
publication
Critical
patent/AU4542572A/en
1974-02-14
Publication of AU477383B2
publication
Critical
patent/AU477383B2/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04B—TRANSMISSION
H04B3/00—Line transmission systems
H04B3/02—Details
H04B3/04—Control of transmission; Equalising
H04B3/10—Control of transmission; Equalising by pilot signal
G—PHYSICS
G10—MUSICAL INSTRUMENTS; ACOUSTICS
G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
G10L21/04—Time compression or expansion
G—PHYSICS
G11—INFORMATION STORAGE
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B21/00—Head arrangements not specific to the method of recording or reproducing
G—PHYSICS
G11—INFORMATION STORAGE
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K4/00—Generating pulses having essentially a finite slope or stepped portions
H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
H03K4/501—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator
H03K4/502—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator the capacitor being charged from a constant-current source
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K7/00—Modulating pulses with a continuously-variable modulating signal
H03K7/08—Duration or width modulation ; Duty cycle modulation
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04B—TRANSMISSION
H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 – H04B13/00; Details of transmission systems not characterised by the medium used for transmission
H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 – H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04B—TRANSMISSION
H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 – H04B13/00; Details of transmission systems not characterised by the medium used for transmission
H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 – H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
H04B1/662—Details of transmission systems, not covered by a single one of groups H04B3/00 – H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a time/frequency relationship, e.g. time compression or expansion
AU45425/72A
1971-08-13
1972-08-09
Controlled delay line signal processor for sound reproduction
Expired
AU477383B2
(en)
Applications Claiming Priority (4)
Application Number
Priority Date
Filing Date
Title
US17157171A
1971-08-13
1971-08-13
USUS171,571
1971-08-13
US22403572A
1972-02-07
1972-02-07
USUS224,035
1972-02-07
Publications (2)
Publication Number
Publication Date
AU4542572A
true
AU4542572A
(en)
1974-02-14
AU477383B2
AU477383B2
(en)
1974-02-14
Family
ID=
Also Published As
Publication number
Publication date
AR201269A1
(en)
1975-02-28
ES405791A1
(en)
1976-05-16
CA965014A
(en)
1975-03-25
DE2238136C2
(en)
1984-04-19
PH9570A
(en)
1976-01-16
PL95183B1
(en)
1977-09-30
DE2238136A1
(en)
1973-03-01
NL7210770A
(en)
1973-02-15
JPS551596B2
(en)
1980-01-16
ATA699872A
(en)
1979-05-15
LU65886A1
(en)
1974-02-12
SE383934B
(en)
1976-04-05
DD100347A5
(en)
1973-09-12
NL172200B
(en)
1983-02-16
GB1406831A
(en)
1975-10-01
BE787492A
(en)
1973-02-12
NL172200C
(en)
1983-07-18
FR2150067A5
(en)
1973-03-30
IL40057A
(en)
1975-07-28
CH564815A5
(en)
1975-07-31
CS195258B2
(en)
1980-01-31
AT354126B
(en)
1979-12-27
IT962099B
(en)
1973-12-20
JPS4835703A
(en)
1973-05-26
IL40057A0
(en)
1972-10-29
Similar Documents
Publication
Publication Date
Title
ZA725451B
(en)
1974-02-27
Controlled delay line signal processor for sound reproduction
CA982055A
(en)
1976-01-20
Sound reproducing system
CA976090A
(en)
1975-10-14
Sound reproducing system
CA997277A
(en)
1976-09-21
Signal matrixing for directional reproduction of sound
AU464001B2
(en)
1975-08-14
Apparatus for reproducing quadraphonic sound
CA977687A
(en)
1975-11-11
Reproduction of sound
CA944102A
(en)
1974-03-26
Mounting means for disposer sound jacket
CA965014A
(en)
1975-03-25
Controlled delay line signal processor for sound reproduction
CA981589A
(en)
1976-01-13
Decoder for quadruphonic sound
CA976485A
(en)
1975-10-21
Apparatus for reproducing quadruphonic sound
CA972796A
(en)
1975-08-12
Sound reproduction system
AU477383B2
(en)
1974-02-14
Controlled delay line signal processor for sound reproduction
CA925028A
(en)
1973-04-24
Audio signal delay system
CA872376A
(en)
1971-06-01
Sound reproducing apparatus
CA1006828A
(en)
1977-03-15
Signal matrixing for directional reproduction of sound
CA1006824A
(en)
1977-03-15
Signal matrixing for directional reproduction of sound
CA1006829A
(en)
1977-03-15
Signal matrixing for directional reproduction of sound
CA1006830A
(en)
1977-03-15
Signal matrixing for directional reproduction of sound
CA1006831A
(en)
1977-03-15
Signal matrixing for directional reproduction of sound
CA1006832A
(en)
1977-03-15
Signal matrixing for directional reproduction of sound
CA800703A
(en)
1968-12-03
Device for the stereophonic reproduction of signals
CA901660A
(en)
1972-05-30
Audio signal processor
CA882984A
(en)
1971-10-12
Means for sound suppression
CA975685A
(en)
1975-10-07
Apparatus for reproducing quadraphonic sound
CA872374A
(en)
1971-06-01
Stereo sound reproduction system
None