[go: up one dir, main page]

GB1098927A - A new or improved blind aid - Google Patents

A new or improved blind aid

Info

Publication number
GB1098927A
GB1098927A GB17983/65A GB1798365A GB1098927A GB 1098927 A GB1098927 A GB 1098927A GB 17983/65 A GB17983/65 A GB 17983/65A GB 1798365 A GB1798365 A GB 1798365A GB 1098927 A GB1098927 A GB 1098927A
Authority
GB
United Kingdom
Prior art keywords
transducers
aid
transmitting
blind
signals
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.)
Expired
Application number
GB17983/65A
Inventor
Leslie Kay
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.)
NAT RES DEV
National Research Development Corp UK
Original Assignee
NAT RES DEV
National Research Development Corp UK
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 NAT RES DEV, National Research Development Corp UK filed Critical NAT RES DEV
Priority to GB17983/65A priority Critical patent/GB1098927A/en
Priority to US541851A priority patent/US3366922A/en
Priority to DE1548479A priority patent/DE1548479B2/en
Priority to FR59255A priority patent/FR1477884A/en
Priority to JP41026939A priority patent/JPS5027736B1/ja
Priority to CH619166A priority patent/CH443069A/en
Priority to AT407666A priority patent/AT273247B/en
Priority to ES0326146A priority patent/ES326146A1/en
Priority to NL6605777A priority patent/NL6605777A/xx
Publication of GB1098927A publication Critical patent/GB1098927A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001—Teaching or communicating with blind persons
    • G09B21/006—Teaching or communicating with blind persons using audible presentation of the information
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S15/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/87—Combinations of sonar systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/91—Portable sonar devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

1,098,927. Sonic blind-aid. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 15, 1966 [April 29, 1965], No. 17983/65. Heading H4D. In a sonic blind-aid in which acoustic energy is radiated to a field of view and received after reflection from an object therein by a transmitter-receiver system incorporating two receiving transducers mounted on a head set the transmitting and receiving transducers are constructed and oriented such that the overall sensitivity of the system has a directivity pattern similar to that of the auditory system of the user to provide natural binaural location of the object. The invention is applicable to the blind aid system of Specification 978,741, and may involve the transmission of frequencymodulated ultrasonic signals which are heterodyned with the received signals (as described in that Specification) to provide audible beat signals which are fed to left- and right-hand earphones, or may involve the conversion of the echo-times of amplitude-modulated (e.g. pulse) transmission signals to range-dependent audible tones. Acoustic energy is transmitted with substantially uniform amplitude (represented by K in the polar diagram of Fig. 1) over an angular field of view H to J, and the principal axes E, F of the directivity lobes C, D are arranged to diverge from the centre of the field of view. In a first embodiment (Figs. 4 to 7), an elongated transmitting transducer (216) is mounted with the receiving transducers (217) on a spectacle frame, the ends of transducer (216) subtending an angle greater than that included by the normals to the receptive surfaces of transducers (217). In a second embodiment (Figs. 8 and 9) two elongated transmitting transducers (316) are mounted on a spectacle frame and their radii of curvature at their inner ends (316f) is arranged to be parallel to or inclined towards central axis (362) to compensate for the reduction in transmitted signal strength along axis (362) which would otherwise occur. The construction of the transmitting and the receiving transducers is described and is similar to that of the transducers of Specification 978,741.
GB17983/65A 1965-04-29 1965-04-29 A new or improved blind aid Expired GB1098927A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB17983/65A GB1098927A (en) 1965-04-29 1965-04-29 A new or improved blind aid
US541851A US3366922A (en) 1965-04-29 1966-04-11 Blind aid
DE1548479A DE1548479B2 (en) 1965-04-29 1966-04-22 Portable sound orientation device for blind people to determine objects in the field of vision using the echo method
FR59255A FR1477884A (en) 1965-04-29 1966-04-27 Improved auxiliary device for use by the blind
JP41026939A JPS5027736B1 (en) 1965-04-29 1966-04-28
CH619166A CH443069A (en) 1965-04-29 1966-04-28 Auxiliary device for the use of the blind
AT407666A AT273247B (en) 1965-04-29 1966-04-29 Help for the blind
ES0326146A ES326146A1 (en) 1965-04-29 1966-04-29 AUXILIARY APPLIANCE FOR INVIDENTS.
NL6605777A NL6605777A (en) 1965-04-29 1966-04-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17983/65A GB1098927A (en) 1965-04-29 1965-04-29 A new or improved blind aid

Publications (1)

Publication Number Publication Date
GB1098927A true GB1098927A (en) 1968-01-10

Family

ID=10104609

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17983/65A Expired GB1098927A (en) 1965-04-29 1965-04-29 A new or improved blind aid

Country Status (8)

Country Link
US (1) US3366922A (en)
JP (1) JPS5027736B1 (en)
AT (1) AT273247B (en)
CH (1) CH443069A (en)
DE (1) DE1548479B2 (en)
ES (1) ES326146A1 (en)
GB (1) GB1098927A (en)
NL (1) NL6605777A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0895603A4 (en) * 1996-04-25 1999-07-28 Interval Research Corp Personal object detector

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE757456A (en) * 1969-10-17 1971-03-16 Westinghouse Electric Corp SIDE VIEW SONAR DEVICE
AU7732475A (en) * 1974-01-18 1976-07-15 Wormald Vigilant Ltd Multi-channel gain control
US3987403A (en) * 1974-01-18 1976-10-19 Russell Peter Smith Sensory aids for the blind
DE2530964C2 (en) * 1974-07-15 1984-11-15 Leslie Christchurch Kay Device for obtaining a signal characterizing a movable element
JPS5458994A (en) * 1977-10-19 1979-05-12 Sharp Kk Blind person walking aid
DE2966661D1 (en) * 1978-08-14 1984-03-22 Leslie Kay Method of and apparatus for providing information as to the existence and/or position of objects
DE2966789D1 (en) * 1978-08-21 1984-04-19 Leslie Kay Method of and apparatus for providing information as to the existence or position of objects
DE2931837A1 (en) * 1979-08-06 1981-02-26 Heinz Dr Ing Wallerus Orienteering aid for ground navigation features - includes receiver for ultrasonic electromagnetic or infrared signals reflected from object and evaluated by computer
US4551825A (en) * 1982-11-01 1985-11-05 Polaroid Corporation Sonic ranging/detection system employing varied beamwidth
US4674069A (en) * 1982-12-16 1987-06-16 Omron Tateisi Electronics Co. System for collecting and processing data relating to moving bodies
US4774515A (en) * 1985-09-27 1988-09-27 Bo Gehring Attitude indicator
EP0248530A3 (en) * 1986-05-09 1988-12-07 Leslie Kay A method and apparatus for inspection or monitoring of a product
KR890002504B1 (en) * 1986-09-15 1989-07-10 김원기 Ultrasonic Detector for Visually Impaired and Signal Processing Method
US4907136A (en) * 1989-03-03 1990-03-06 Jorgensen Adam A Echo location system for vision-impaired persons
DE3942093A1 (en) * 1989-12-20 1990-05-31 Feser Werner Electronic orientation aid for blind - provides stereo acoustic signal corresponding to detected frequency characteristic or frequency spectrum
US5107467A (en) * 1990-04-13 1992-04-21 Jorson Enterprises, Inc. Echo location system for vision-impaired persons
GB2291551B (en) * 1994-06-24 1998-03-18 Roscoe C Williams Limited Electronic viewing aid
US6133795A (en) * 1994-06-24 2000-10-17 Williams; Roscoe Charles Oscillator circuit
DE19525010B4 (en) * 1995-06-27 2004-08-19 Obrira Optik Brillen Gmbh Ultrasound glasses for the blind and visually impaired
US5982286A (en) * 1998-05-15 1999-11-09 Vanmoor; Arthur Object detecting apparatus
US8120521B2 (en) * 2003-10-28 2012-02-21 Preco Electronics, Inc. Radar echolocater with audio output
US7439848B2 (en) * 2005-10-11 2008-10-21 Surag Mantri Handheld aid for the visually impaired
US7957224B2 (en) * 2009-04-29 2011-06-07 Lindsay Tremper Human echolocation system
US9201143B2 (en) 2009-08-29 2015-12-01 Echo-Sense Inc. Assisted guidance navigation
US9508269B2 (en) 2010-08-27 2016-11-29 Echo-Sense Inc. Remote guidance system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467368A (en) * 1943-09-23 1949-04-19 Submarine Signal Co Submarine sound direction determining system
US3107351A (en) * 1955-04-29 1963-10-15 Robert A Milam Radar resolutions
US3172075A (en) * 1959-11-27 1965-03-02 Nat Res Dev Apparatus for furnishing information as to positioning of objects

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0895603A4 (en) * 1996-04-25 1999-07-28 Interval Research Corp Personal object detector
US6011754A (en) * 1996-04-25 2000-01-04 Interval Research Corp. Personal object detector with enhanced stereo imaging capability

Also Published As

Publication number Publication date
JPS5027736B1 (en) 1975-09-10
CH443069A (en) 1967-08-31
DE1548479B2 (en) 1975-10-23
AT273247B (en) 1969-08-11
DE1548479A1 (en) 1969-09-11
ES326146A1 (en) 1967-03-01
NL6605777A (en) 1966-10-31
US3366922A (en) 1968-01-30

Similar Documents

Publication Publication Date Title
GB1098927A (en) A new or improved blind aid
US4044273A (en) Ultrasonic transducer
CA2036061A1 (en) Acoustic ultrasound variable origin, variable angle scanning system
WO1998000719A3 (en) Apparatus and method for determining movements and velocities of moving objects
GB2578697A (en) Formation acoustic property measurement with beam-angled transducer array
GB1357329A (en) Detection apparatus
SE310795B (en)
GB1297545A (en)
US4532615A (en) Phased array for an ultrasonic transducer
GB2185321A (en) Ultrasonic reflex transmission imaging method and apparatus with external reflector
CA1062360A (en) Suppression of out-of-focus echoes in ultrasonic scanning
SE8704649L (en) SENSOR DEVICE FOR ACOUSTIC LOG
GB1331841A (en) Electro-acoustic transducer
GB1265326A (en)
GB1193383A (en) Improvements in or relating to Acoustic Logging Apparatus
GB1300121A (en) Apparatus for echo sound location, particulary for sea fishing
GB1519971A (en) Acoustic recieiver for underground strata exploration
US2769161A (en) Cone microphone
GB1395933A (en) Method and apparatus for attenuating side maxima in ultrasonic echo sounding processes
GB1486068A (en) Echo sounder systems utilizing non-linear acoustic signal interaction
EP0616231A3 (en) Process and device for measuring the current volume in a layer with reflecting structure.
JP2791019B2 (en) Ultrasonic array sensor
JPS5635078A (en) Distance measuring unit
GB982176A (en) Ultrasonic delay line
GB1121767A (en) Apparatus for thickness measurement