Title:
ELECTRONIC DEVICE, ELECTRONIC DEVICE USING METHOD, AND ELECTRONIC DEVICE SYSTEM
Document Type and Number:
WIPO Patent Application WO/1998/043391
Kind Code:
A1
Abstract:
When an IRD (103) performs reservation operation to use a bus in order to transmit broadcasting data from the IRD (103) through the bus in a desired time zone, the IRD (103) inquires all the devices connected to the bus, such as DVD (104), D-VTRs (1101 and 102), a CAM (105), a TV (100), and an isochronous manager section (107) of the D-VTR (1101) of the information about the present bus using states and bus reservations states. The manager section (107) and the other devices give the IRD (103) answers to the inquiry. The IRD (103) judges the possibility of the reservation from the answers. Then the IRD (103) judges that the reservation is possible, performs reservations. When the IRD (103) judges that the reservation is impossible, the IRD (103) displays the reason on the TV (100). Therefore, the use of devices beyond the transfer capacity of the bus is prevented.
Inventors:
FUKUSHIMA SHINICHIRO (JP)
NOZOE TAKAHIKO (JP)
HASEGAWA TSUKASA (JP)
GOTO HIDEFUMI (JP)
NOZOE TAKAHIKO (JP)
HASEGAWA TSUKASA (JP)
GOTO HIDEFUMI (JP)
Application Number:
PCT/JP1997/000933
Publication Date:
October 01, 1998
Filing Date:
March 21, 1997
Export Citation:
Assignee:
HITACHI LTD (JP)
FUKUSHIMA SHINICHIRO (JP)
NOZOE TAKAHIKO (JP)
HASEGAWA TSUKASA (JP)
GOTO HIDEFUMI (JP)
FUKUSHIMA SHINICHIRO (JP)
NOZOE TAKAHIKO (JP)
HASEGAWA TSUKASA (JP)
GOTO HIDEFUMI (JP)
International Classes:
G06F13/00; H04L12/40; H04L12/433; H04L12/801; H04N5/775; H04N7/16; H04N21/436; H04N21/4363; H04N21/443; H04N21/472; H04N5/765; H04N5/77; H04N5/782; H04N5/85; (IPC1-7): H04L12/28; H04L12/40
Foreign References:
| JPH0927814A | 1997-01-28 | |||
| JPH0951344A | 1997-02-18 | |||
| JPH08228200A | 1996-09-03 | |||
| JPH08125670A | 1996-05-17 | |||
| JPH07336375A | 1995-12-22 | |||
| JPH06244842A | 1994-09-02 | |||
| JPH05242022A | 1993-09-21 | |||
| JPH04346598A | 1992-12-02 | |||
| JPH03147151A | 1991-06-24 | |||
| US5052029A | 1991-09-24 |
Other References:
SMYERS S: "PROVIDING AN ISOCHRONOUS TRANSFER FUNCTION FOR MULTIMEDIA DATA", NIKKEI ELECTRONICS, NIKKEI BUSINESS PUBLICATIONS, TOKYO, JP, no. 612, 1 January 1994 (1994-01-01), JP, pages 152 - 163, XP008053005, ISSN: 0385-1680
TECHNICAL RESEARCH REPORT OF IEICE 96-DPS-74, Vol. 96, No. 12, INFORMATION PROCESSING SOC. OF JAPAN (IPSJ), 26 January 1996, MASANORI SUZUKI, TAKUYA FUJIMOTO, TOSHIHIRO KAGEYAMA, HIROYUKI KITAYAMA, TOSHIO KOIZUMI, "High-Speed Serial Bus (IEEE 1394) Communication Method for Video Conference System (in Japanese)", pp.
KUNZMAN A. J., WETZEL A. T.: "1394 HIGH PERFORMANCE SERIAL BUS: THE DIGITAL INTERFACE FOR ATV.", IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 41., no. 03., 1 August 1995 (1995-08-01), NEW YORK, NY, US, pages 893 - 900., XP000539552, ISSN: 0098-3063, DOI: 10.1109/30.468067
BLOKS R. H. J.: "THE IEEE-1394 HIGH SPEED SERIAL BUS.", PHILIPS JOURNAL OF RESEARCH., ELSEVIER, AMSTERDAM., NL, vol. 50., no. 01/02., 1 January 1996 (1996-01-01), NL, pages 209 - 216., XP000940724, ISSN: 0165-5817, DOI: 10.1016/0165-5817(96)81310-6
See also references of EP 0977401A4
TECHNICAL RESEARCH REPORT OF IEICE 96-DPS-74, Vol. 96, No. 12, INFORMATION PROCESSING SOC. OF JAPAN (IPSJ), 26 January 1996, MASANORI SUZUKI, TAKUYA FUJIMOTO, TOSHIHIRO KAGEYAMA, HIROYUKI KITAYAMA, TOSHIO KOIZUMI, "High-Speed Serial Bus (IEEE 1394) Communication Method for Video Conference System (in Japanese)", pp.
KUNZMAN A. J., WETZEL A. T.: "1394 HIGH PERFORMANCE SERIAL BUS: THE DIGITAL INTERFACE FOR ATV.", IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 41., no. 03., 1 August 1995 (1995-08-01), NEW YORK, NY, US, pages 893 - 900., XP000539552, ISSN: 0098-3063, DOI: 10.1109/30.468067
BLOKS R. H. J.: "THE IEEE-1394 HIGH SPEED SERIAL BUS.", PHILIPS JOURNAL OF RESEARCH., ELSEVIER, AMSTERDAM., NL, vol. 50., no. 01/02., 1 January 1996 (1996-01-01), NL, pages 209 - 216., XP000940724, ISSN: 0165-5817, DOI: 10.1016/0165-5817(96)81310-6
See also references of EP 0977401A4
Attorney, Agent or Firm:
Ogawa, Katsuo (5-1, Marunouchi 1-chom, Chiyoda-ku Tokyo 100, JP)
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