CA2257658A1 - Restricted information distribution system apparatus and methods - Google Patents

Restricted information distribution system apparatus and methods

Info

Publication number
CA2257658A1
CA2257658A1 CA 2257658 CA2257658A CA2257658A1 CA 2257658 A1 CA2257658 A1 CA 2257658A1 CA 2257658 CA2257658 CA 2257658 CA 2257658 A CA2257658 A CA 2257658A CA 2257658 A1 CA2257658 A1 CA 2257658A1
Authority
CA
Canada
Prior art keywords
data
transmitted
decoder
information
receiver
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.)
Granted
Application number
CA 2257658
Other languages
French (fr)
Other versions
CA2257658C (en
Inventor
Joseph S. Nadan
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.)
Market Data Corp
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
Priority claimed from US07/880,582 external-priority patent/US5321750A/en
Application filed by Individual filed Critical Individual
Publication of CA2257658A1 publication Critical patent/CA2257658A1/en
Application granted granted Critical
Publication of CA2257658C publication Critical patent/CA2257658C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)

Abstract

Authorized decoders (60) are provided with enable reception keys (66) so that subsequently transmitted data having an information identification code matching (65) a reception key (66) at a decoder-receiver may be retrieved for subsequent display on the video screen. Tile messaging (72.1) and cellular micrographic transmission techniques are used to reduce the volume of data transmitted to change update data, wherein cells (72.1) of characters are transmitted as one byte of data and cells (72.1) of pixel data are transmitted a plurality of bytes of data. Each decoder-receiver (60) may have a plurality of video screens separately and uniquely identified such that encoded update data and other messages are transmitted for specific video screens. The system includes multiplexing financial market information and television program information signals, and transmitting the multiplexed signals to the decoder-receivers for selectively displaying different combinations of information.
CA 2257658 1992-05-08 1993-05-07 Restricted information distribution system apparatus and methods Expired - Fee Related CA2257658C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/880,582 US5321750A (en) 1989-02-07 1992-05-08 Restricted information distribution system apparatus and methods
US880,582 1992-05-08
CA002113078A CA2113078C (en) 1992-05-08 1993-05-07 Restricted information distribution system apparatus and methods

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002113078A Division CA2113078C (en) 1992-05-08 1993-05-07 Restricted information distribution system apparatus and methods

Publications (2)

Publication Number Publication Date
CA2257658A1 true CA2257658A1 (en) 1993-11-25
CA2257658C CA2257658C (en) 2000-09-12

Family

ID=25676917

Family Applications (3)

Application Number Title Priority Date Filing Date
CA 2257658 Expired - Fee Related CA2257658C (en) 1992-05-08 1993-05-07 Restricted information distribution system apparatus and methods
CA 2257659 Expired - Fee Related CA2257659C (en) 1992-05-08 1993-05-07 Restricted information distribution system apparatus and methods
CA 2257657 Abandoned CA2257657A1 (en) 1992-05-08 1993-05-07 Restricted information distribution system apparatus and methods

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA 2257659 Expired - Fee Related CA2257659C (en) 1992-05-08 1993-05-07 Restricted information distribution system apparatus and methods
CA 2257657 Abandoned CA2257657A1 (en) 1992-05-08 1993-05-07 Restricted information distribution system apparatus and methods

Country Status (1)

Country Link
CA (3) CA2257658C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109171701A (en) * 2018-07-05 2019-01-11 北京谷山丰生物医学技术有限公司 Improve the method and device of ECG Gathering System frequency response

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7835989B1 (en) 1992-12-09 2010-11-16 Discovery Communications, Inc. Electronic book alternative delivery systems
US8073695B1 (en) 1992-12-09 2011-12-06 Adrea, LLC Electronic book with voice emulation features
US5990927A (en) 1992-12-09 1999-11-23 Discovery Communications, Inc. Advanced set top terminal for cable television delivery systems
US7849393B1 (en) 1992-12-09 2010-12-07 Discovery Communications, Inc. Electronic book connection to world watch live
US7509270B1 (en) 1992-12-09 2009-03-24 Discovery Communications, Inc. Electronic Book having electronic commerce features
US7861166B1 (en) 1993-12-02 2010-12-28 Discovery Patent Holding, Llc Resizing document pages to fit available hardware screens
US8095949B1 (en) 1993-12-02 2012-01-10 Adrea, LLC Electronic book with restricted access features
US9053640B1 (en) 1993-12-02 2015-06-09 Adrea, LLC Interactive electronic book
US7865567B1 (en) 1993-12-02 2011-01-04 Discovery Patent Holdings, Llc Virtual on-demand electronic book

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109171701A (en) * 2018-07-05 2019-01-11 北京谷山丰生物医学技术有限公司 Improve the method and device of ECG Gathering System frequency response

Also Published As

Publication number Publication date
CA2257657A1 (en) 1993-11-25
CA2257658C (en) 2000-09-12
CA2257659A1 (en) 1993-11-25
CA2257659C (en) 2003-01-14

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20080507