Telematic system and method of controlling the same

• US 4,677,257 A
• Filed: 09/30/1985
• Issued: 06/30/1987
• Est. Priority Date: 10/04/1984
• Status: Expired due to Fees

• Current Assignee: Nippon Telegraph and Telephone Corporation, Ricoh Company Limited
• Original Assignee: Nippon Telegraph and Telephone Corporation, Ricoh Company Limited
• Inventors: Ogasawara, Fumihiro, Sonehara, Noboru
• Primary Examiner(s): Schreyer, Stafford D.
• Application Number:
  US06/781,915
• Time in Patent Office: 638 Days
• Field of Search: 178/4, 178/2 R, 178/4.1 R, 178/17.5, 178/25, 178/4.1 B, 178/26 R
• US Class Current: 178/4
• CPC Class Codes: H04N 1/32702 using digital control signals H04N1/32704, H04N1/32614, H04N1/32771 take precedence
• CPC Class Codes: H04N 1/32791 Arrangements for reducing the handshaking procedure or protocol time

Abstract

In a telematic system, a plurality of response timings for a page boundary command, a page end command and the like from a sending system are prepared. A proper timing is selected in accordance with the type of sending system or an instruction from the sending system.

Claims

1. A method of controlling a telematic system, comprising the steps of:

preparing at a receiving system a plurality of response timings of a reception response signal for a command signal which represents a transfer boundary of transfer data from a sending telematic system;

responding to a sending system to the command signal from a system excluding a specific telematic system at a first timing among the plurality of response timings, the first timing being providing immediately after the command signal is received;

and responding to the sending system to a command signal from the specific telematic system at a second timing so as to guarantee transmission reliability, the second timing being provided following the first timing.

2. A method according to claim 1, wherein the command signal representing the boundary of the transfer data comprises a page boundary command signal for a facsimile system.

3. A method according to claim 1, wherein the second timing is a timing immediately after a recording sheet is discharged from a write control unit in the telematic system.

4. A method of controlling a telematic system, comprising the steps of:

preparing at a receiving system a plurality of response timings of reception response signals to be sent back in response to command signals representing boundaries of transfer data from a sending telematic system;

adding to a sequence control command from the sending telematic system a parameter designating each response timing for each command signal from the sending telematic system representing a corresponding boundary of the transfer data;

and selecting a proper response timing of the receiving telematic system in accordance with the parameter for sending back to the sending system.

5. A method according to claim 4, wherein the command signal representing the boundary of the transfer data comprises a page boundary command signal for a facsimile system.

6. A method according to claim 4, wherein the sequence control command comprises a page boundary command signal for a facsimile system.

7. A method according to claim 5, wherein the response timings include a first timing given immediately after reception of the page boundary command signal and a second timing given immediately after paper discharge of a write control unit.

8. A telematic system comprising:

means for registering a specific telematic system as a system subjected to communication with high reliability in advance;

means for discriminating whether or not the other end of a line comprises the specific telematic system; and

means for storing a plurality of response timings for reception response signals to be sent back to a sending telematic system in response to the command signals representing boundaries of transfer data from the sending telematic system and for selecting a proper one of the response timings in accordance with a discrimination result.

9. A system according to claim 8, wherein the command signal representing the boundary of transfer data comprises a page boundary command signal for a facsimile system, and the response timings include a first timing given immediately after reception of the page boundary command signal and a second timing given immediately after paper discharge of a write control unit.

10. A telematic system characterized by comprising:

means for discriminating a content of a control signal designating a response timing of a response signal sent by a receiving system back to a sending system in response to a command signal representing a boundary of transfer data, the control signal being added to a sequence control command transmitted from the sending telematic system;

and means for storing a plurality of response timings of response signals to be sent back in response to a command signal which represents a boundary of transfer data and which is sent from the sending telematic system, selecting a proper response timing in accordance with a discrimination result, and sending back a corresponding response signal from the receiving to the sending system.

11. A system according to claim 10, wherein the command signal representing the boundary of transfer data comprises a page boundary command signal for a facsimile system, and the response timings include a first timing given immediately after reception of the page boundary command signal and a second timing given immediately after paper discharge of a write control unit.