US3809067A - Modulation responsive anti-evasion system for breath testers - Google Patents
Modulation responsive anti-evasion system for breath testers Download PDFInfo
- Publication number
- US3809067A US3809067A US00260603A US26060372A US3809067A US 3809067 A US3809067 A US 3809067A US 00260603 A US00260603 A US 00260603A US 26060372 A US26060372 A US 26060372A US 3809067 A US3809067 A US 3809067A
- Authority
- US
- United States
- Prior art keywords
- breath
- tester
- filter
- subject
- frequencies
- 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 - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
- A61B5/18—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state for vehicle drivers or machine operators
Definitions
- ABSTRACT An anti-evasion system is disclosed for breath alcohol testers including a sound transducer and filter network that distinguishes between the presence and absence of human modulation of the breath sample (such as humming) and prevents a gas sample not obtained in conjunction with such modulation from indicating a 2 Claims, 3 Drawing Figures PATENTEBIAY H974 3809.067
- the present invention relates to an anti-deception system for breath alcohol testers.
- An anti-evasion system for use with a breath tester constructed in accordance with the present invention includes a transducer positioned to receive sound waves transmitted at the breath input of the tester and transforms those sound waves into an electrical signal, means (e.g., a filter) coupled to the transducer for distinguishing between the presence and absence of audio frequencies and control means for preventing passing of the test in the absence of pre-selected frequencies.
- means e.g., a filter
- FIG. 1 is a perspective view of a breath input unit, of a breath tester incorporating the present invention, with parts brokenaway to show interior parts;
- FIG. 2 is a block diagram of the inventive system
- FIG. 3 is a detailed diagram, partly in block form and partly in circuit form, of a part of the system of FIGS. 1 and 2.
- the filter may substantially attenuate audio frequency signals below 50 hz and above 500 hz and a low hum be required of the user of the breath tester. In this case absence of such a hum would mean that essentially no signal is passed by the filter 22.
- the signals passed 'by filter 22 are amplified by the amplifier 24 and coupled to a control circuit 26 which serves to prevent a pass output signal from being produced by the tester.
- the circuit 26 preferably includes an indicator 28, such as a light, which indicates the presence of a proper sound.
- FIG. 5 A portion of FIG. 5 thereof is depicted in FIG. 3 hereof.
- the blowing timer 62 and pressure switch 60 are unchanged, but that the base of that switch is, .in accordance with this invention, connected to ground through the circuit 26, specifically through the collector-emitter circuit of an NPN transistor 26A.
- the collector of transistor 26A is-also connected to one side of the lamp 28 whose other side is connected by a line 260 to the line connecting K4B and K2 (a convenient source of positive potential).
- the base of transistor 26A is connected through a parallel-connected resistor 26B and capacitor 26C to ground and through a diode 26D to the signal from the amplifier 24.
- the presence of the proper pressure for a sufficient length of time (e.g., 5 seconds) is used to obtain a sample of deep lung breath from a human user.
- the present exemplary system adds the requirement that the antievasion output signal from circuit 26 be also present for that period. In the absence of both such signals for the period the test is aborted and no pass signal may be obtained.
- a breath tester system for administering a test to a human subject to evaluate the alcohol concentration in the subject's breath comprising:
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hospice & Palliative Care (AREA)
- Psychiatry (AREA)
- Psychology (AREA)
- Social Psychology (AREA)
- Physics & Mathematics (AREA)
- Developmental Disabilities (AREA)
- Biophysics (AREA)
- Child & Adolescent Psychology (AREA)
- Biomedical Technology (AREA)
- Educational Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
Description
Claims (2)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00260603A US3809067A (en) | 1972-06-07 | 1972-06-07 | Modulation responsive anti-evasion system for breath testers |
CA168,847A CA1009334A (en) | 1972-06-07 | 1973-04-16 | Modulation responsive anti-evasion system for breath testers |
GB2170973A GB1410103A (en) | 1972-06-07 | 1973-05-07 | Modulation responsive antievasion system for breath testers |
IT23783/73A IT987161B (en) | 1972-06-07 | 1973-05-07 | ANTI-ALTERATION SYSTEM SENSITIVE TO THE MODULATION FOR ANALYZING THE CONTENT OF ALCOHOL IN THE BREATH |
AU55652/73A AU5565273A (en) | 1972-06-07 | 1973-05-14 | Modulation responsive anti-evasion system for breath testers |
DE2325400A DE2325400A1 (en) | 1972-06-07 | 1973-05-18 | MODULATION CONTROLLED SYSTEM TO PREVENT BREAKING THE RESPIRATORY DEVICE |
JP48056916A JPS4943491A (en) | 1972-06-07 | 1973-05-23 | |
FR7320796A FR2187270B1 (en) | 1972-06-07 | 1973-06-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00260603A US3809067A (en) | 1972-06-07 | 1972-06-07 | Modulation responsive anti-evasion system for breath testers |
Publications (1)
Publication Number | Publication Date |
---|---|
US3809067A true US3809067A (en) | 1974-05-07 |
Family
ID=22989838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00260603A Expired - Lifetime US3809067A (en) | 1972-06-07 | 1972-06-07 | Modulation responsive anti-evasion system for breath testers |
Country Status (8)
Country | Link |
---|---|
US (1) | US3809067A (en) |
JP (1) | JPS4943491A (en) |
AU (1) | AU5565273A (en) |
CA (1) | CA1009334A (en) |
DE (1) | DE2325400A1 (en) |
FR (1) | FR2187270B1 (en) |
GB (1) | GB1410103A (en) |
IT (1) | IT987161B (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4697666A (en) * | 1986-09-16 | 1987-10-06 | Guardian Interlock Systems, Inc. | Sobriety interlock with time-locked interlock mode |
US4738333A (en) * | 1986-09-16 | 1988-04-19 | Guardian Technologies, Inc. | Sobriety interlock with unsupervised confirmation of operator identity |
US4809810A (en) * | 1986-05-01 | 1989-03-07 | Autosense Corporation | Breath alcohol analyzer |
WO1989003530A1 (en) * | 1987-10-16 | 1989-04-20 | Guardian Technologies, Inc. | Breath alcohol testing system |
US4843377A (en) * | 1987-04-21 | 1989-06-27 | Guardian Technologies, Inc. | Remote confinement system |
US4900514A (en) * | 1987-05-01 | 1990-02-13 | Guardian Technologies, Inc. | Breath analyzer mouthpiece system |
US4916435A (en) * | 1988-05-10 | 1990-04-10 | Guardian Technologies, Inc. | Remote confinement monitoring station and system incorporating same |
US4999613A (en) * | 1987-04-21 | 1991-03-12 | Guardian Technologies, Inc. | Remote confinement system |
US5586171A (en) * | 1994-07-07 | 1996-12-17 | Bell Atlantic Network Services, Inc. | Selection of a voice recognition data base responsive to video data |
US5734090A (en) * | 1996-03-27 | 1998-03-31 | Alcohol Sensors International, Ltd. | Method and apparatus for sonic breath determination |
US20060264773A1 (en) * | 2002-02-11 | 2006-11-23 | Gannon Mark D | Breathing detection/confirmation device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2534173B (en) * | 2015-01-15 | 2017-01-18 | Autoliv Dev | A breath analyser device and a related method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3184937A (en) * | 1965-05-25 | Voice controlled lock mechanism | ||
US3286031A (en) * | 1963-03-04 | 1966-11-15 | Alto Scient Co Inc | Voice actuated device |
GB1066661A (en) * | 1964-03-19 | 1967-04-26 | Edward Joseph Huxley | Improvements in or relating to audio-actuated protective devices |
US3688126A (en) * | 1971-01-29 | 1972-08-29 | Paul R Klein | Sound-operated, yes-no responsive switch |
US3696377A (en) * | 1970-07-15 | 1972-10-03 | Thomas P Wall | Antisnoring device |
-
1972
- 1972-06-07 US US00260603A patent/US3809067A/en not_active Expired - Lifetime
-
1973
- 1973-04-16 CA CA168,847A patent/CA1009334A/en not_active Expired
- 1973-05-07 GB GB2170973A patent/GB1410103A/en not_active Expired
- 1973-05-07 IT IT23783/73A patent/IT987161B/en active
- 1973-05-14 AU AU55652/73A patent/AU5565273A/en not_active Expired
- 1973-05-18 DE DE2325400A patent/DE2325400A1/en active Pending
- 1973-05-23 JP JP48056916A patent/JPS4943491A/ja active Pending
- 1973-06-07 FR FR7320796A patent/FR2187270B1/fr not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3184937A (en) * | 1965-05-25 | Voice controlled lock mechanism | ||
US3286031A (en) * | 1963-03-04 | 1966-11-15 | Alto Scient Co Inc | Voice actuated device |
GB1066661A (en) * | 1964-03-19 | 1967-04-26 | Edward Joseph Huxley | Improvements in or relating to audio-actuated protective devices |
US3696377A (en) * | 1970-07-15 | 1972-10-03 | Thomas P Wall | Antisnoring device |
US3688126A (en) * | 1971-01-29 | 1972-08-29 | Paul R Klein | Sound-operated, yes-no responsive switch |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4809810A (en) * | 1986-05-01 | 1989-03-07 | Autosense Corporation | Breath alcohol analyzer |
US4738333A (en) * | 1986-09-16 | 1988-04-19 | Guardian Technologies, Inc. | Sobriety interlock with unsupervised confirmation of operator identity |
US4697666A (en) * | 1986-09-16 | 1987-10-06 | Guardian Interlock Systems, Inc. | Sobriety interlock with time-locked interlock mode |
US4999613A (en) * | 1987-04-21 | 1991-03-12 | Guardian Technologies, Inc. | Remote confinement system |
US4843377A (en) * | 1987-04-21 | 1989-06-27 | Guardian Technologies, Inc. | Remote confinement system |
US4900514A (en) * | 1987-05-01 | 1990-02-13 | Guardian Technologies, Inc. | Breath analyzer mouthpiece system |
WO1989003530A1 (en) * | 1987-10-16 | 1989-04-20 | Guardian Technologies, Inc. | Breath alcohol testing system |
US4996161A (en) * | 1987-10-16 | 1991-02-26 | Guardian Technologies, Inc. | Breath alcohol testing system |
US4916435A (en) * | 1988-05-10 | 1990-04-10 | Guardian Technologies, Inc. | Remote confinement monitoring station and system incorporating same |
US5586171A (en) * | 1994-07-07 | 1996-12-17 | Bell Atlantic Network Services, Inc. | Selection of a voice recognition data base responsive to video data |
US5666400A (en) * | 1994-07-07 | 1997-09-09 | Bell Atlantic Network Services, Inc. | Intelligent recognition |
US5734090A (en) * | 1996-03-27 | 1998-03-31 | Alcohol Sensors International, Ltd. | Method and apparatus for sonic breath determination |
US20060264773A1 (en) * | 2002-02-11 | 2006-11-23 | Gannon Mark D | Breathing detection/confirmation device |
Also Published As
Publication number | Publication date |
---|---|
GB1410103A (en) | 1975-10-15 |
AU5565273A (en) | 1974-11-14 |
IT987161B (en) | 1975-02-20 |
FR2187270A1 (en) | 1974-01-18 |
CA1009334A (en) | 1977-04-26 |
FR2187270B1 (en) | 1976-04-09 |
JPS4943491A (en) | 1974-04-24 |
DE2325400A1 (en) | 1973-12-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3809067A (en) | Modulation responsive anti-evasion system for breath testers | |
US2699465A (en) | Device for indicating the cessation of cardiac function | |
US3082414A (en) | Sleep inhibiting device and method | |
US7269262B2 (en) | Hearing test apparatus and method having automatic starting functionality | |
CA1198806A (en) | Heart rate detector | |
US4220160A (en) | Method and apparatus for discrimination and detection of heart sounds | |
CA1076692A (en) | Stethoscope | |
US3593703A (en) | Diagnostic cough-monitoring techniques | |
Love et al. | Identification of brief pauses in the fluent speech of stutterers and nonstutterers | |
DE69318569D1 (en) | ELECTRONIC STETHOSCOPE | |
US4601295A (en) | Ear pathology diagnosis apparatus and method | |
JPH0141331B2 (en) | ||
SE8201598L (en) | DEVICE FOR REDUCING THE SOUND IN A SOUND SIGNAL | |
CA1143014A (en) | Portable digital heart rate meter/ stethoscope | |
US4086917A (en) | Fetal heart rate monitoring system | |
DE68925358D1 (en) | STETHOSCOPE WITH ACOUSTIC REINFORCEMENT | |
US2145449A (en) | Sound pick-up and amplifying apparatus | |
EP0103640A4 (en) | Ear pathology diagnosis apparatus and method. | |
US3348535A (en) | Parturitive phone | |
US2394569A (en) | Fitting hearing aid device | |
US3835837A (en) | Human pulse rate measuring apparatus | |
US3536062A (en) | Monitoring system for heart rate,respiration rate and blood pressure | |
Dirks et al. | Speech audiometry: earphone and sound field | |
GB2214302A (en) | An apnoea monitor for use during sleep | |
US3728670A (en) | Ultrasonic doppler device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: 677491 ONTARIO, LTD., 1765 SHAWSON DRIVE, MISSISSA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALCOHOL COUNTERMEASURE SYSTEMS INC.;REEL/FRAME:004611/0156 Effective date: 19860815 Owner name: 677491 ONTARIO, LTD., 1765 SHAWSON DRIVE, MISSISSA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ALCOHOL COUNTERMEASURE SYSTEMS INC.;REEL/FRAME:004611/0156 Effective date: 19860815 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES) |
|
AS | Assignment |
Owner name: ALCOHOL COUNTERMEASURE SYSTEMS CORP. Free format text: CHANGE OF NAME;ASSIGNOR:677491 ONTARIO, LTD.;REEL/FRAME:004701/0946 Effective date: 19861209 Owner name: ALCOHOL COUNTERMEASURE SYSTEMS CORP.,STATELESS Free format text: CHANGE OF NAME;ASSIGNOR:677491 ONTARIO, LTD.;REEL/FRAME:004701/0946 Effective date: 19861209 |