GB1205309A – Improvements in or relating to data processing systems
– Google Patents
GB1205309A – Improvements in or relating to data processing systems
– Google Patents
Improvements in or relating to data processing systems
Info
Publication number
GB1205309A
GB1205309A
GB4940068A
GB4940068A
GB1205309A
GB 1205309 A
GB1205309 A
GB 1205309A
GB 4940068 A
GB4940068 A
GB 4940068A
GB 4940068 A
GB4940068 A
GB 4940068A
GB 1205309 A
GB1205309 A
GB 1205309A
Authority
GB
United Kingdom
Prior art keywords
processor
message
buffer
sections
section
Prior art date
1967-10-19
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.)
Expired
Application number
GB4940068A
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.)
Siemens AG
Original Assignee
Siemens AG
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.)
1967-10-19
Filing date
1968-10-18
Publication date
1970-09-16
1968-10-18
Application filed by Siemens AG
filed
Critical
Siemens AG
1970-09-16
Publication of GB1205309A
publication
Critical
patent/GB1205309A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04Q—SELECTING
H04Q3/00—Selecting arrangements
H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L1/00—Arrangements for detecting or preventing errors in the information received
H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04Q—SELECTING
H04Q11/00—Selecting arrangements for multiplex systems
H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control
Abstract
1,205,309. Exchange systems; data transmission. SIEMENS A.G. 18 Oct., 1968 [19 Oct., 1967], No. 49400/68. Headings H4K and H4P. In a data processing system messages to be transmitted are compiled as an arbitrary number of equal-sized words and the number of such words constituting a message is sent prior to sending the message. The specific embodiment relates to a processor controlled telephone exchange and the signalling employed between the processor and a buffer circuit serving a mixed group of individual circuits comprising a switching network. The messages between the processor and a buffer circuit comprise a number of sections each of the same bit length. The first section indicates the total number of sections constituting the message, the second and possibly also the third sections indicate the address of the network equipment to which the message relates, while the succeeding sections to a maximum of a further four comprise control data relative to processor work functions. In transmitting from a buffer to the processor reception of the message length indication is acknowledged by the processor to elicit the next section of the message and so on. Message length is recorded in both buffer and processor to determine the last section sent and received. In transmitting from the processor to a buffer, the processor sends the acknowledgment signal to prepare the buffer before sending each section of a message. Absence of acknowledgment signal or reception of data in illogical order results in fault signals. The exchange system is the same as that described in Specification 1,205,305.
GB4940068A
1967-10-19
1968-10-18
Improvements in or relating to data processing systems
Expired
GB1205309A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DES0112477
1967-10-19
Publications (1)
Publication Number
Publication Date
GB1205309A
true
GB1205309A
(en)
1970-09-16
Family
ID=7531812
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4940068A
Expired
GB1205309A
(en)
1967-10-19
1968-10-18
Improvements in or relating to data processing systems
Country Status (9)
Country
Link
BE
(1)
BE722575A
(en)
CH
(1)
CH489061A
(en)
CS
(1)
CS188101B2
(en)
DE
(1)
DE1537850A1
(en)
ES
(1)
ES359131A1
(en)
FR
(1)
FR1584946A
(en)
GB
(1)
GB1205309A
(en)
NL
(1)
NL6814391A
(en)
YU
(2)
YU32389B
(en)
1967
1967-10-19
DE
DE19671537850
patent/DE1537850A1/en
active
Pending
1968
1968-10-08
NL
NL6814391A
patent/NL6814391A/xx
unknown
1968-10-14
ES
ES359131A
patent/ES359131A1/en
not_active
Expired
1968-10-16
YU
YU239968A
patent/YU32389B/en
unknown
1968-10-16
YU
YU239768A
patent/YU31558B/en
unknown
1968-10-17
CH
CH1552768A
patent/CH489061A/en
not_active
IP Right Cessation
1968-10-17
FR
FR1584946D
patent/FR1584946A/fr
not_active
Expired
1968-10-18
GB
GB4940068A
patent/GB1205309A/en
not_active
Expired
1968-10-18
BE
BE722575D
patent/BE722575A/xx
unknown
1968-10-18
CS
CS720168A
patent/CS188101B2/en
unknown
Also Published As
Publication number
Publication date
ES359131A1
(en)
1970-06-01
CS188101B2
(en)
1979-02-28
YU239768A
(en)
1973-02-28
YU31558B
(en)
1973-08-31
FR1584946A
(en)
1970-01-02
BE722575A
(en)
1969-04-18
CH489061A
(en)
1970-04-15
SU401069A3
(en)
1973-10-01
NL6814391A
(en)
1969-04-22
DE1537850A1
(en)
1969-11-13
YU32389B
(en)
1974-10-31
YU239968A
(en)
1974-04-30
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Legal Events
Date
Code
Title
Description
1971-01-27
PS
Patent sealed
1973-05-16
PLNP
Patent lapsed through nonpayment of renewal fees
