WO2004042966A1 - Verfahren zur infrarot-datenübertragung - Google Patents
Verfahren zur infrarot-datenübertragung Download PDFInfo
- Publication number
- WO2004042966A1 WO2004042966A1 PCT/AT2002/000310 AT0200310W WO2004042966A1 WO 2004042966 A1 WO2004042966 A1 WO 2004042966A1 AT 0200310 W AT0200310 W AT 0200310W WO 2004042966 A1 WO2004042966 A1 WO 2004042966A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission
- data
- units
- transmitted
- interval
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/1149—Arrangements for indoor wireless networking of information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/08—Time-division multiplex systems
Definitions
- the invention relates to a method for infrared data transmission between a plurality of transmitting units and a common receiving station, the individual transmitting units sending the data to be transmitted block by block to the receiving station at a time interval from one another.
- a base station for example a computer, audio or video systems, game consoles or the like
- a base station for example a computer, audio or video systems, game consoles or the like
- different carrier frequencies are assigned to the individual transmission units of the operating devices, or the data blocks are transmitted one after the other by the transmission units, which is associated with a corresponding outlay.
- the invention is therefore based on the object of designing a method for infrared data transmission between a plurality of transmitting units and a common receiving station of the type described in such a way that secure data transmission is possible with little effort, without using different carrier frequencies or using the transmitting units from the common receiving station to have to head here.
- the invention achieves the stated object in that the data blocks to be transmitted are repeatedly sent in a transmission interval of the same length for all transmission units, corresponding to the maximum number of transmission units, the length of the transmission units being different for all transmission units. distinguish different repetition intervals at least by twice the transmission time for a maximum data block size, and that the shortest repetition interval corresponds at least to the multiple of the double number of transmission times corresponding to the maximum number of transmission units for a maximum data block size.
- the data combined to form data blocks are sent several times within a predefined transmission interval, namely in a number corresponding to the maximum number of transmission units, provided that the repetition intervals of the individual transmission units differ in their length by a predefined minimum amount, each data block transmitted by a transmitting unit is received at least once in its full length unaffected by data transmissions from the other transmitting units from the receiving station. Since, for a given maximum data block length, a time offset of two data blocks sent by different transmission units up to an extent of the transmission time for one data block leads to an overlapping reception of the two data blocks in the receiving station, the minimum interval between the repetition intervals of the individual transmission units must be twice the transmission time for one maximum data block size.
- the shortest repetition interval must not be shorter than the multiple of twice the transmission time corresponding to the maximum number of transmission units for a maximum data block size, because otherwise the data blocks of all transmission units with the required safety intervals corresponding to the data block length cannot be sent without mutual overlap within the shortest repetition interval, However, this is a prerequisite for an at least one overlap-free transmission of each data block regardless of the respective transmission time of the transmission units. If the data blocks each contain an identifier for the sending unit from which they were sent in the usual way, then secure, one-sided data transmission from the sending units to the receiving station becomes possible in a simple manner, regardless of the respective sending time of the sending units. Between the transmission of different data blocks however, the specified transmission interval must be observed from a transmission unit.
- the data to be transmitted In order to be able to control transmitting units for infrared data transmission to a common receiving station in accordance with the method according to the invention, the data to be transmitted, combined in a data block and stored in a memory of each transmitting unit, must be repeatedly read out via a control unit for transmission to the receiving station to the transmitting unit, the repetition interval being predetermined as a function of the program as a function of the number of transmission units and the data block length, specifically for each transmission unit, because these repetition intervals must have a gradation in time as a function of the data block length.
- the repetition intervals of the individual transmission units which are coordinated in terms of their length, can easily be predetermined by the time elements assigned to the individual transmission units.
- the data to be transmitted can be read into the memory in a conventional manner with the aid of an input device, which can be constructed very differently and can consist, for example, of a keyboard, a mouse or a control lever.
- FIG. 1 shows a device according to the invention for infrared data transmission between a plurality of transmitting units and a common receiving station in a simplified block diagram
- FIG. 4 shows the infrared signal received by the receiving station in accordance with the transmission protocol according to FIG. 3. - o -
- the data to be transmitted from the individual transmitting units 1 to a common receiving station 2 are read into a memory 4 via an input device 3, specifically by means of a control unit 5, which is connected on the one hand to a program memory 6 and on the other hand to a timer 7. Via this control device 5, the stored data are combined into a data block depending on the respectively specified program and forwarded to a transmitting stage 8 for transmission to the receiving station 2.
- an infrared carrier is modulated in accordance with the data block to be transmitted, as is indicated, for example, in FIG. 2. From Fig.
- the following two bits can represent the respective repetition number, while the last three bits contain the information actually to be transmitted, such as that about the input device 3 was entered. These last three bits can represent the code of a pressed key, for example.
- FIG. 3 shows the temporal transmission protocol of four transmission units 1 under the assumption that transmission is unfavorable, that all transmission units units S1 to S4 are started simultaneously, so that the data blocks d1 to d4 sent by the individual transmitter units S1 to S4 within a transmission interval T arrive simultaneously in the receiving station 2, which leads to a signal F according to FIG. 4 which cannot be evaluated.
- the data blocks d1 to d4 are not only sent once, but according to the number of transmission units, i.e. four times, the repetition intervals i1 to ⁇ ' 4 differing in length, at least by twice the transmission time of the data blocks d, to d4 ,
- the smallest repetition interval i1 corresponds to at least four times twice the data block length, as can be seen in FIG.
- each data block d1 to d4 is transmitted to the receiving station 2 completely and at least once and without being affected by data blocks from other transmission units.
- F the number of incorrect transmissions
- the data blocks d1 to d4 transmitted by the individual transmission units 1 in the manner described are received in the reception station 2 via a reception stage 9 common to all transmission units 1 and fed to an evaluation circuit 10 which is connected to a corresponding program memory 11 in order to assign the incoming data blocks and to be able to decrypt.
- This evaluation circuit 10 is connected again in the usual way to a data memory 12 and to a timing element 13 in order to be able to ensure appropriate data processing.
- the received data can then be forwarded via an output device 14 to control the connected base station.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- Optical Communication System (AREA)
- Mobile Radio Communication Systems (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK02791573T DK1561294T3 (da) | 2002-11-06 | 2002-11-06 | Fremgangsmåde til infraröd dataoverförsel |
ES02791573T ES2261767T3 (es) | 2002-11-06 | 2002-11-06 | Procedimiento para la transmision de datos por infrarrojos. |
PCT/AT2002/000310 WO2004042966A1 (de) | 2002-11-06 | 2002-11-06 | Verfahren zur infrarot-datenübertragung |
CNB028298535A CN1311650C (zh) | 2002-11-06 | 2002-11-06 | 一种红外数据传输方法及使用该方法的设备 |
DE50206168T DE50206168D1 (de) | 2002-11-06 | 2002-11-06 | Verfahren zur infrarot-datenübertragung |
US10/534,078 US7421208B2 (en) | 2002-11-06 | 2002-11-06 | Method for carrying out infrared data transmission |
AT02791573T ATE321384T1 (de) | 2002-11-06 | 2002-11-06 | Verfahren zur infrarot-datenübertragung |
AU2002357940A AU2002357940A1 (en) | 2002-11-06 | 2002-11-06 | Method for carrying out infrared data transmission |
EP02791573A EP1561294B1 (de) | 2002-11-06 | 2002-11-06 | Verfahren zur infrarot-datenübertragung |
HK06102512A HK1082603A1 (en) | 2002-11-06 | 2006-02-24 | A method for infrared data transmission and a device using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/AT2002/000310 WO2004042966A1 (de) | 2002-11-06 | 2002-11-06 | Verfahren zur infrarot-datenübertragung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004042966A1 true WO2004042966A1 (de) | 2004-05-21 |
Family
ID=32303945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2002/000310 WO2004042966A1 (de) | 2002-11-06 | 2002-11-06 | Verfahren zur infrarot-datenübertragung |
Country Status (10)
Country | Link |
---|---|
US (1) | US7421208B2 (de) |
EP (1) | EP1561294B1 (de) |
CN (1) | CN1311650C (de) |
AT (1) | ATE321384T1 (de) |
AU (1) | AU2002357940A1 (de) |
DE (1) | DE50206168D1 (de) |
DK (1) | DK1561294T3 (de) |
ES (1) | ES2261767T3 (de) |
HK (1) | HK1082603A1 (de) |
WO (1) | WO2004042966A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005218066A (ja) * | 2004-02-02 | 2005-08-11 | Nakagawa Kenkyusho:Kk | 位置情報通信装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3624507A1 (de) * | 1986-07-19 | 1988-01-21 | Stein Gmbh | Verfahren und einrichtung zur nachrichtenuebertragung ueber einen kanal |
US5098110A (en) * | 1989-07-19 | 1992-03-24 | Michael Yang | Method for remotely controlling a video game system of a video game apparatus |
FR2674658A1 (fr) * | 1991-03-28 | 1992-10-02 | Fusilier Jean Marie | Procede de transmission et de teletransmission en mode aleatoire aveugle entre plusieurs emetteurs et recepteurs. |
EP0920891A1 (de) * | 1997-12-02 | 1999-06-09 | Two Way TV Limited | Verfahren und Vorrichtung für die Eingabe von Daten |
WO2000028501A1 (en) * | 1998-11-11 | 2000-05-18 | Dixon-Manning Limited | Multiple infrared control arrangements |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5122796A (en) * | 1986-02-19 | 1992-06-16 | Auto-Sense, Limited | Object detection method and apparatus emplying electro-optics |
US5331450A (en) * | 1992-01-06 | 1994-07-19 | Ast Research, Inc. | Infrared transmitter and receiver and method |
JP3467916B2 (ja) * | 1995-07-10 | 2003-11-17 | 松下電器産業株式会社 | 送受信方式 |
KR100289017B1 (ko) * | 1998-12-15 | 2001-05-02 | 김용범 | 적외선송신/수신장치 |
-
2002
- 2002-11-06 WO PCT/AT2002/000310 patent/WO2004042966A1/de not_active Application Discontinuation
- 2002-11-06 EP EP02791573A patent/EP1561294B1/de not_active Revoked
- 2002-11-06 CN CNB028298535A patent/CN1311650C/zh not_active Expired - Fee Related
- 2002-11-06 AT AT02791573T patent/ATE321384T1/de not_active IP Right Cessation
- 2002-11-06 AU AU2002357940A patent/AU2002357940A1/en not_active Abandoned
- 2002-11-06 ES ES02791573T patent/ES2261767T3/es not_active Expired - Lifetime
- 2002-11-06 DK DK02791573T patent/DK1561294T3/da active
- 2002-11-06 US US10/534,078 patent/US7421208B2/en not_active Expired - Fee Related
- 2002-11-06 DE DE50206168T patent/DE50206168D1/de not_active Expired - Lifetime
-
2006
- 2006-02-24 HK HK06102512A patent/HK1082603A1/xx not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3624507A1 (de) * | 1986-07-19 | 1988-01-21 | Stein Gmbh | Verfahren und einrichtung zur nachrichtenuebertragung ueber einen kanal |
US5098110A (en) * | 1989-07-19 | 1992-03-24 | Michael Yang | Method for remotely controlling a video game system of a video game apparatus |
FR2674658A1 (fr) * | 1991-03-28 | 1992-10-02 | Fusilier Jean Marie | Procede de transmission et de teletransmission en mode aleatoire aveugle entre plusieurs emetteurs et recepteurs. |
EP0920891A1 (de) * | 1997-12-02 | 1999-06-09 | Two Way TV Limited | Verfahren und Vorrichtung für die Eingabe von Daten |
WO2000028501A1 (en) * | 1998-11-11 | 2000-05-18 | Dixon-Manning Limited | Multiple infrared control arrangements |
Also Published As
Publication number | Publication date |
---|---|
ES2261767T3 (es) | 2006-11-16 |
US20060159459A1 (en) | 2006-07-20 |
DE50206168D1 (de) | 2006-05-11 |
HK1082603A1 (en) | 2006-06-09 |
CN1311650C (zh) | 2007-04-18 |
EP1561294A1 (de) | 2005-08-10 |
EP1561294B1 (de) | 2006-03-22 |
DK1561294T3 (da) | 2006-07-10 |
CN1695324A (zh) | 2005-11-09 |
US7421208B2 (en) | 2008-09-02 |
ATE321384T1 (de) | 2006-04-15 |
AU2002357940A1 (en) | 2004-06-07 |
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