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  Patent History
  • Application
    US 09/251526 1999-02-17
  • Granted
    US 6271815 2001-08-07

granted patent: Handy Information Display System

TitleHandy Information Display System
Granted PatentUS 6271815
Granted Date2001-08-07
Priority Date1999-02-17 US 09/251526
1998-02-20 US 09/075457P
Inventors
Issue Date2001
Citation
US Patent 6271815. Washington, DC: US Patent and Trademark Office (USPTO), 2001 How to Cite?
AbstractA Handy Information Display System Is Disclosed. The System Has Three Main Components: A Light Emitting Diodes (Led) Array Display Board, An Information Server And A Portable Unit. The Led Array Display Board Includes A Plurality Of Light Emitting Diodes And Photodetectors. It Can Be Used To Display Alphabets, Numbers And Simple Graphics. While It Visually Gives An Effectively Stationary Message Display, The Led Can Also Be Modulated To Transmit High Frequency Signals. The Modulating Frequency Should Be High Enough To Be Imperceptible By Humans. Both Message Display And Signal Transmission Are Controlled By An Information Server. The System Further Comprises At Least One Portable Unit. The Portable Unit Is Equipped With An Optical Transceiver And A Visual Display Unit. The Optical Transceiver Can Detect The Signals Transmitted From The Led Array Display Board. The Visual Display Unit Then Shows The Information Corresponding To The Received Signals.
Persistent Identifierhttp://hdl.handle.net/10722/142135
References

 

DC FieldValueLanguage
dc.date.accessioned2011-10-19T06:30:06Z-
dc.date.available2011-10-19T06:30:06Z-
dc.date.issued2001-
dc.identifier.citationUS Patent 6271815. Washington, DC: US Patent and Trademark Office (USPTO), 2001en_HK
dc.identifier.urihttp://hdl.handle.net/10722/142135-
dc.description.abstractA Handy Information Display System Is Disclosed. The System Has Three Main Components: A Light Emitting Diodes (Led) Array Display Board, An Information Server And A Portable Unit. The Led Array Display Board Includes A Plurality Of Light Emitting Diodes And Photodetectors. It Can Be Used To Display Alphabets, Numbers And Simple Graphics. While It Visually Gives An Effectively Stationary Message Display, The Led Can Also Be Modulated To Transmit High Frequency Signals. The Modulating Frequency Should Be High Enough To Be Imperceptible By Humans. Both Message Display And Signal Transmission Are Controlled By An Information Server. The System Further Comprises At Least One Portable Unit. The Portable Unit Is Equipped With An Optical Transceiver And A Visual Display Unit. The Optical Transceiver Can Detect The Signals Transmitted From The Led Array Display Board. The Visual Display Unit Then Shows The Information Corresponding To The Received Signals.en_HK
dc.relation.isreferencedbyEP 2372765 (A1) 2011-10-05en_HK
dc.relation.isreferencedbyUS 2009297146 (A1) 2009-12-03en_HK
dc.relation.isreferencedbyUS 8032030 (B2) 2011-10-04en_HK
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dc.relation.isreferencedbyUS 7062280 (B2) 2006-06-13en_HK
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dc.relation.isreferencedbyUS 6683590 (B1) 2004-01-27en_HK
dc.relation.isreferencedbyUS 6445369 (B1) 2002-09-03en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documents-
dc.titleHandy Information Display Systemen_HK
dc.typePatenten_US
dc.identifier.emailCheung, Sing Wai:swcheung@eee.hku.hken_US
dc.identifier.emailKwok, Chi Kong Paul:en_US
dc.identifier.emailPang, Grantham Kwok Hung:gpang@eee.hku.hken_US
dc.identifier.emailTam, Yau Yee:en_US
dc.identifier.emailTse, Kai Wing:kwtse@hkueee.hku.hken_US
dc.identifier.emailYang, Edward S.:esyang@eee.hku.hken_US
dc.identifier.authorityCheung, Sing Wai=rp00102en_US
dc.identifier.authorityPang, Grantham Kwok Hung=rp00162en_US
dc.description.naturepublished_or_final_version-
dc.identifier.hkuros72482en_US
dc.contributor.inventorYang, Edward S.en_US
dc.contributor.inventorTam, Yau Yeeen_US
dc.contributor.inventorPang, Grantham Kwok Hungen_US
dc.contributor.inventorCheung, Sing Waien_US
dc.contributor.inventorTse, Kai Wingen_US
dc.contributor.inventorKwok, Chi Kong Paulen_US
patents.identifier.applicationUS 09/251526en_HK
patents.identifier.grantedUS 6271815en_HK
patents.description.assigneeUniv Hong Kong [Us]en_HK
patents.description.countryUnited States of Americaen_HK
patents.date.granted2001-08-07en_HK
dc.relation.referencesUS 4330870 (A) 1982-05-18en_HK
dc.relation.referencesUS 4409467 (A) 1983-10-11en_HK
dc.relation.referencesUS 4763291 (A) 1988-08-09en_HK
dc.relation.referencesUS 4839837 (A) 1989-06-13en_HK
dc.relation.referencesUS 5099348 (A) 1992-03-24en_HK
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dc.relation.referencesUS 5257020 (C1) 2002-08-13en_HK
dc.relation.referencesUS 5969704 (A) 1999-10-19en_HK
dc.relation.referencesUS 6089459 (A) 2000-07-18en_HK
patents.identifier.hkutechidEEE-2001-00187-1en_US
patents.date.application1999-02-17en_HK
patents.date.priority1999-02-17 US 09/251526en_HK
patents.date.priority1998-02-20 US 09/075457Pen_HK
patents.description.ccUSen_HK
patents.relation.familyAU 2773299 (A) 1999-09-06en_HK
patents.relation.familyUS 6271815 (B1) 2001-08-07en_HK
patents.relation.familyWO 9942985 (A1) 1999-08-26en_HK
patents.description.kindB1en_HK
patents.typePatent_granteden_HK

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