GB2314276B - An improved electrically operated line monitor for tennis - Google Patents

An improved electrically operated line monitor for tennis

Info

Publication number
GB2314276B
GB2314276B GB9612807A GB9612807A GB2314276B GB 2314276 B GB2314276 B GB 2314276B GB 9612807 A GB9612807 A GB 9612807A GB 9612807 A GB9612807 A GB 9612807A GB 2314276 B GB2314276 B GB 2314276B
Authority
GB
United Kingdom
Prior art keywords
tennis
electrically operated
line monitor
improved electrically
operated line
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 - Fee Related
Application number
GB9612807A
Other versions
GB9612807D0 (en
GB2314276A (en
Inventor
William Charles Carlton
Sarah Gauci Carlton
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9612807A priority Critical patent/GB2314276B/en
Publication of GB9612807D0 publication Critical patent/GB9612807D0/en
Priority to DE1997119653 priority patent/DE19719653A1/en
Publication of GB2314276A publication Critical patent/GB2314276A/en
Application granted granted Critical
Publication of GB2314276B publication Critical patent/GB2314276B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0605—Decision makers and devices using detection means facilitating arbitration
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0605—Decision makers and devices using detection means facilitating arbitration
    • A63B2071/0611—Automatic tennis linesmen, i.e. in-out detectors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/941—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated using an optical detector
    • H03K2217/94114—Optical multi axis

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB9612807A 1996-06-19 1996-06-19 An improved electrically operated line monitor for tennis Expired - Fee Related GB2314276B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9612807A GB2314276B (en) 1996-06-19 1996-06-19 An improved electrically operated line monitor for tennis
DE1997119653 DE19719653A1 (en) 1996-06-19 1997-05-09 Electrically operated line guard for tennis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9612807A GB2314276B (en) 1996-06-19 1996-06-19 An improved electrically operated line monitor for tennis

Publications (3)

Publication Number Publication Date
GB9612807D0 GB9612807D0 (en) 1996-08-21
GB2314276A GB2314276A (en) 1997-12-24
GB2314276B true GB2314276B (en) 2000-11-15

Family

ID=10795536

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9612807A Expired - Fee Related GB2314276B (en) 1996-06-19 1996-06-19 An improved electrically operated line monitor for tennis

Country Status (2)

Country Link
DE (1) DE19719653A1 (en)
GB (1) GB2314276B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810148A (en) * 1972-07-06 1974-05-07 Kewp Inc Electronic line indicator apparatus
US4266124A (en) * 1979-08-10 1981-05-05 Data Instruments, Inc. Photoelectric object detector system
US4719339A (en) * 1984-03-31 1988-01-12 Kabushiki Kaisha Toshiba Coordinates detector wherein X and Y emitting elements are enabled independently of each other
US5130532A (en) * 1988-02-02 1992-07-14 Erwin Sick Gmbh Optik-Elektronik Light barrier grid with electrically decoupled emitters and detectors which are operatable in synchronism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810148A (en) * 1972-07-06 1974-05-07 Kewp Inc Electronic line indicator apparatus
US4266124A (en) * 1979-08-10 1981-05-05 Data Instruments, Inc. Photoelectric object detector system
US4719339A (en) * 1984-03-31 1988-01-12 Kabushiki Kaisha Toshiba Coordinates detector wherein X and Y emitting elements are enabled independently of each other
US5130532A (en) * 1988-02-02 1992-07-14 Erwin Sick Gmbh Optik-Elektronik Light barrier grid with electrically decoupled emitters and detectors which are operatable in synchronism

Also Published As

Publication number Publication date
DE19719653A1 (en) 1998-01-02
GB9612807D0 (en) 1996-08-21
GB2314276A (en) 1997-12-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050619