US3570008A - Telephone switching system - Google Patents
Telephone switching system Download PDFInfo
- Publication number
- US3570008A US3570008A US334875A US3570008DA US3570008A US 3570008 A US3570008 A US 3570008A US 334875 A US334875 A US 334875A US 3570008D A US3570008D A US 3570008DA US 3570008 A US3570008 A US 3570008A
- Authority
- US
- United States
- Prior art keywords
- switching system
- telephone switching
- control
- equipments
- dupliated
- 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.)
- Expired - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 abstract 2
- PWPJGUXAGUPAHP-UHFFFAOYSA-N lufenuron Chemical compound C1=C(Cl)C(OC(F)(F)C(C(F)(F)F)F)=CC(Cl)=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F PWPJGUXAGUPAHP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
- G06F9/4806—Task transfer initiation or dispatching
- G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0751—Error or fault detection not based on redundancy
- G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
- G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs
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- G—PHYSICS
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- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1405—Saving, restoring, recovering or retrying at machine instruction level
- G06F11/141—Saving, restoring, recovering or retrying at machine instruction level for bus or memory accesses
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1629—Error detection by comparing the output of redundant processing systems
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- G—PHYSICS
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- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1629—Error detection by comparing the output of redundant processing systems
- G06F11/1633—Error detection by comparing the output of redundant processing systems using mutual exchange of the output between the redundant processing components
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1629—Error detection by comparing the output of redundant processing systems
- G06F11/1641—Error detection by comparing the output of redundant processing systems where the comparison is not performed by the redundant processing components
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- G—PHYSICS
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- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1629—Error detection by comparing the output of redundant processing systems
- G06F11/1641—Error detection by comparing the output of redundant processing systems where the comparison is not performed by the redundant processing components
- G06F11/1645—Error detection by comparing the output of redundant processing systems where the comparison is not performed by the redundant processing components and the comparison itself uses redundant hardware
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1629—Error detection by comparing the output of redundant processing systems
- G06F11/165—Error detection by comparing the output of redundant processing systems with continued operation after detection of the error
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1629—Error detection by comparing the output of redundant processing systems
- G06F11/1654—Error detection by comparing the output of redundant processing systems where the output of only one of the redundant processing components can drive the attached hardware, e.g. memory or I/O
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1666—Error detection or correction of the data by redundancy in hardware where the redundant component is memory or memory area
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1675—Temporal synchronisation or re-synchronisation of redundant processing components
- G06F11/1679—Temporal synchronisation or re-synchronisation of redundant processing components at clock signal level
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/1675—Temporal synchronisation or re-synchronisation of redundant processing components
- G06F11/1687—Temporal synchronisation or re-synchronisation of redundant processing components at event level, e.g. by interrupt or result of polling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
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- G—PHYSICS
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- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2023—Failover techniques
- G06F11/2033—Failover techniques switching over of hardware resources
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2043—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant where the redundant components share a common memory address space
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/30003—Arrangements for executing specific machine instructions
- G06F9/30007—Arrangements for executing specific machine instructions to perform operations on data operands
- G06F9/30018—Bit or string instructions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/38—Concurrent instruction execution, e.g. pipeline, look ahead
- G06F9/3867—Concurrent instruction execution, e.g. pipeline, look ahead using instruction pipelines
- G06F9/3875—Pipelining a single stage, e.g. superpipelining
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
- G06F9/4806—Task transfer initiation or dispatching
- G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
- G06F9/4825—Interrupt from clock, e.g. time of day
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- 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
- H04Q3/54541—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 using multi-processor systems
- H04Q3/5455—Multi-processor, parallelism, distributed systems
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- 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
- H04Q3/54575—Software application
- H04Q3/54591—Supervision, e.g. fault localisation, traffic measurements, avoiding errors, failure recovery, monitoring, statistical analysis
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/2002—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where interconnections or communication control functionality are redundant
- G06F11/2007—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where interconnections or communication control functionality are redundant using redundant communication media
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
- G06F2201/845—Systems in which the redundancy can be transformed in increased performance
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
- Interface Circuits In Exchanges (AREA)
- Executing Machine-Instructions (AREA)
Abstract
A PROGRAM CONTROLLED TELEPHONE SWITCHING SYSTEM WHICH COMPRISES DUPLICATED CONTROL AND MEMORY UNITS AND DUPLIATED PERIPHERAL EQUIPMENTS. THE CONTROL OF TH PERIPH-
ERAL EQUIPMENTS THROUGH COMMON TRANSLATING INSTRUMENTALITIES IS DESCRIBED.
ERAL EQUIPMENTS THROUGH COMMON TRANSLATING INSTRUMENTALITIES IS DESCRIBED.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US33487563A | 1963-12-31 | 1963-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3570008A true US3570008A (en) | 1971-03-09 |
Family
ID=23309246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US334875A Expired - Lifetime US3570008A (en) | 1963-12-31 | 1963-12-31 | Telephone switching system |
Country Status (13)
Country | Link |
---|---|
US (1) | US3570008A (en) |
JP (1) | JPS514062B1 (en) |
AT (7) | AT273543B (en) |
BE (7) | BE654495A (en) |
BR (4) | BR6463327D0 (en) |
CH (7) | CH479993A (en) |
DE (6) | DE1437576C3 (en) |
DK (4) | DK136878B (en) |
FR (7) | FR1426972A (en) |
GB (7) | GB1081817A (en) |
IL (7) | IL22237A (en) |
NL (8) | NL6415236A (en) |
SE (4) | SE319926B (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3737870A (en) * | 1972-04-24 | 1973-06-05 | Ibm | Status switching arrangement |
US3892928A (en) * | 1973-10-09 | 1975-07-01 | Bell Telephone Labor Inc | Switching system equipped with line verification apparatus |
US4053751A (en) * | 1976-04-28 | 1977-10-11 | Bell Telephone Laboratories, Incorporated | Adaptable exerciser for a memory system |
DE2723751A1 (en) * | 1976-05-28 | 1977-12-01 | Western Electric Co | CALL HANDLING ARRANGEMENT IN TELEPHONE SYSTEMS |
US4309765A (en) * | 1978-11-14 | 1982-01-05 | Siemens Aktiengesellschaft | Process for transmitting items of information between devices of an indirectly controlled exchange system, in particular a telephone exchange system |
US4345116A (en) * | 1980-12-31 | 1982-08-17 | Bell Telephone Laboratories, Incorporated | Dynamic, non-hierarchical arrangement for routing traffic |
US4484030A (en) * | 1982-04-19 | 1984-11-20 | At&T Bell Laboratories | Method and apparatus for identifying faulty communications circuits |
US4555594A (en) * | 1983-08-03 | 1985-11-26 | At&T Bell Laboratories | Telephone interexchange signaling protocol |
US4565903A (en) * | 1983-08-03 | 1986-01-21 | At&T Bell Laboratories | Telephone interexchange carrier selection |
US4577066A (en) * | 1983-08-03 | 1986-03-18 | At&T Bell Laboratories | Telephone interexchange call routing |
US4660220A (en) * | 1986-02-25 | 1987-04-21 | Kraus Constantine R | No answer mode for telephone systems |
US4763191A (en) * | 1986-03-17 | 1988-08-09 | American Telephone And Telegraph Company, At&T Bell Laboratories | Dial-up telephone network equipment for requesting an identified selection |
US5289542A (en) * | 1991-03-04 | 1994-02-22 | At&T Bell Laboratories | Caller identification system with encryption |
US5329581A (en) * | 1991-12-23 | 1994-07-12 | At&T Bell Laboratories | Target area calling system |
US5444774A (en) * | 1992-06-26 | 1995-08-22 | At&T Corp. | Interactive queuing sytem for call centers |
US5521965A (en) * | 1992-08-14 | 1996-05-28 | Bell Atlantic Network Services, Inc. | Apparatus and method for handling busy calls in telephone network |
US6618474B1 (en) | 1999-03-08 | 2003-09-09 | Morris Reese | Method and apparatus for providing to a customer a promotional message between ringing signals or after a call waiting tone |
US20110029836A1 (en) * | 2009-07-30 | 2011-02-03 | Cleversafe, Inc. | Method and apparatus for storage integrity processing based on error types in a dispersed storage network |
CN111618854A (en) * | 2020-05-26 | 2020-09-04 | 中国人民解放军国防科技大学 | Task segmentation and collaboration method for security robot |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3723975A (en) * | 1971-06-28 | 1973-03-27 | Ibm | Overdue event detector |
JPS57182858A (en) * | 1981-05-06 | 1982-11-10 | Japan Electronic Control Syst Co Ltd | Monitor circuit for program runaway in computer |
ATE57288T1 (en) * | 1985-08-14 | 1990-10-15 | Siemens Ag | CIRCUIT ARRANGEMENT FOR TELECOMMUNICATION SYSTEMS, IN PARTICULAR TELEPHONE EXCHANGE SYSTEMS, WITH INFORMATION REQUEST DEVICES CYCLICLY CONTROLLING REQUEST POINTS. |
EP0213374B1 (en) * | 1985-08-14 | 1990-01-31 | Siemens Aktiengesellschaft | Circuit arrangement for telecommunication exchanges, particularly telephone exchanges, comprising scanning joints which are cyclically controlled by information interrogation devices |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1024124B (en) * | 1953-03-30 | 1958-02-13 | Lionel Roy Frank Harris | Method for selecting one of several lines in telecommunication systems, in particular in telephone systems that work according to the time division multiplex method |
DE1072273B (en) * | 1957-10-07 | 1959-12-31 | Western Electric Company, Incorporated, New York, 1N. Y. (V. St. A.) | Circuit arrangement for electronic telephone exchanges |
BE625449A (en) * | 1961-04-25 |
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0
- NL NL137733D patent/NL137733C/xx active
-
1963
- 1963-12-31 US US334875A patent/US3570008A/en not_active Expired - Lifetime
-
1964
- 1964-10-12 BR BR163327/64A patent/BR6463327D0/en unknown
- 1964-10-12 IL IL22237A patent/IL22237A/en unknown
- 1964-10-12 BR BR163330/64A patent/BR6463330D0/en unknown
- 1964-10-12 BR BR163331/64A patent/BR6463331D0/en unknown
- 1964-10-12 BR BR163328/64A patent/BR6463328D0/en unknown
- 1964-10-12 IL IL22240A patent/IL22240A/en unknown
- 1964-10-12 IL IL22243A patent/IL22243A/en unknown
- 1964-10-12 IL IL22238A patent/IL22238A/en unknown
- 1964-10-12 IL IL22241A patent/IL22241A/en unknown
- 1964-10-12 IL IL22242A patent/IL22242A/en unknown
- 1964-10-12 IL IL22239A patent/IL22239A/en unknown
- 1964-10-13 DE DE19641437576 patent/DE1437576C3/en not_active Expired
- 1964-10-13 GB GB41688/64A patent/GB1081817A/en not_active Expired
- 1964-10-13 GB GB41686/64A patent/GB1081815A/en not_active Expired
- 1964-10-13 DE DE19641474094D patent/DE1474094B/en active Pending
- 1964-10-13 DE DE19641474096 patent/DE1474096A1/en active Pending
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- 1964-10-13 GB GB41682/64A patent/GB1081811A/en not_active Expired
- 1964-10-13 GB GB41683/64A patent/GB1081812A/en not_active Expired
- 1964-10-13 DE DE19641437577 patent/DE1437577B2/en active Pending
- 1964-10-13 GB GB41684/64A patent/GB1081813A/en not_active Expired
- 1964-10-13 GB GB41687/64A patent/GB1081816A/en not_active Expired
- 1964-10-13 DE DE19641474095D patent/DE1474095B1/en active Pending
- 1964-10-13 DE DE19641474093 patent/DE1474093B2/en active Pending
- 1964-10-14 DK DK506964AA patent/DK136878B/en unknown
- 1964-10-14 DK DK506864AA patent/DK136007B/en unknown
- 1964-10-14 DK DK507064AA patent/DK115124B/en unknown
- 1964-10-14 DK DK507264AA patent/DK114415B/en unknown
- 1964-10-15 SE SE12407/64A patent/SE319926B/xx unknown
- 1964-10-15 AT AT875964A patent/AT273543B/en active
- 1964-10-15 AT AT876264A patent/AT274056B/en active
- 1964-10-15 FR FR991618A patent/FR1426972A/en not_active Expired
- 1964-10-15 AT AT876364A patent/AT271951B/en active
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- 1964-10-15 AT AT876164A patent/AT269518B/en active
- 1964-10-15 AT AT875864A patent/AT272712B/en active
- 1964-10-15 FR FR991619A patent/FR1426973A/en not_active Expired
- 1964-10-15 FR FR991616A patent/FR1442298A/en not_active Expired
- 1964-10-15 CH CH1336864A patent/CH479993A/en not_active IP Right Cessation
- 1964-10-15 SE SE12410/64A patent/SE326990B/xx unknown
- 1964-10-15 CH CH1336564A patent/CH479990A/en not_active IP Right Cessation
- 1964-10-15 CH CH1336464A patent/CH476442A/en not_active IP Right Cessation
- 1964-10-15 CH CH1336764A patent/CH479992A/en not_active IP Right Cessation
- 1964-10-15 CH CH1336364A patent/CH476441A/en not_active IP Right Cessation
- 1964-10-15 CH CH1336664A patent/CH479991A/en not_active IP Right Cessation
- 1964-10-15 FR FR991620A patent/FR1446309A/en not_active Expired
- 1964-10-15 FR FR991615A patent/FR1426970A/en not_active Expired
- 1964-10-15 AT AT876064A patent/AT271950B/en active
- 1964-10-15 AT AT876464A patent/AT274057B/en active
- 1964-10-15 CH CH1336964A patent/CH477140A/en not_active IP Right Cessation
- 1964-10-15 SE SE12406/64A patent/SE312940B/xx unknown
- 1964-10-15 FR FR991617A patent/FR1426971A/en not_active Expired
- 1964-10-16 BE BE654495D patent/BE654495A/xx unknown
- 1964-10-16 BE BE654492D patent/BE654492A/xx unknown
- 1964-10-16 BE BE654497D patent/BE654497A/xx unknown
- 1964-10-16 BE BE654493D patent/BE654493A/xx unknown
- 1964-10-16 BE BE654496D patent/BE654496A/xx unknown
- 1964-10-16 BE BE654494D patent/BE654494A/xx unknown
- 1964-12-30 BE BE657775D patent/BE657775A/xx not_active Expired
- 1964-12-30 NL NL6415236A patent/NL6415236A/xx unknown
- 1964-12-30 NL NL6415239A patent/NL6415239A/xx unknown
- 1964-12-30 FR FR497A patent/FR1442332A/en not_active Expired
- 1964-12-30 NL NL6415235A patent/NL6415235A/xx unknown
- 1964-12-30 NL NL6415241A patent/NL6415241A/xx unknown
- 1964-12-30 NL NL646415240A patent/NL140351B/en unknown
- 1964-12-30 NL NL6415238A patent/NL6415238A/xx unknown
- 1964-12-30 NL NL646415237A patent/NL145065B/en not_active IP Right Cessation
-
1973
- 1973-12-13 JP JP48138248A patent/JPS514062B1/ja active Pending
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3737870A (en) * | 1972-04-24 | 1973-06-05 | Ibm | Status switching arrangement |
US3892928A (en) * | 1973-10-09 | 1975-07-01 | Bell Telephone Labor Inc | Switching system equipped with line verification apparatus |
US4053751A (en) * | 1976-04-28 | 1977-10-11 | Bell Telephone Laboratories, Incorporated | Adaptable exerciser for a memory system |
DE2723751A1 (en) * | 1976-05-28 | 1977-12-01 | Western Electric Co | CALL HANDLING ARRANGEMENT IN TELEPHONE SYSTEMS |
US4309765A (en) * | 1978-11-14 | 1982-01-05 | Siemens Aktiengesellschaft | Process for transmitting items of information between devices of an indirectly controlled exchange system, in particular a telephone exchange system |
US4345116A (en) * | 1980-12-31 | 1982-08-17 | Bell Telephone Laboratories, Incorporated | Dynamic, non-hierarchical arrangement for routing traffic |
US4484030A (en) * | 1982-04-19 | 1984-11-20 | At&T Bell Laboratories | Method and apparatus for identifying faulty communications circuits |
US4555594A (en) * | 1983-08-03 | 1985-11-26 | At&T Bell Laboratories | Telephone interexchange signaling protocol |
US4565903A (en) * | 1983-08-03 | 1986-01-21 | At&T Bell Laboratories | Telephone interexchange carrier selection |
US4577066A (en) * | 1983-08-03 | 1986-03-18 | At&T Bell Laboratories | Telephone interexchange call routing |
US4660220A (en) * | 1986-02-25 | 1987-04-21 | Kraus Constantine R | No answer mode for telephone systems |
US4763191A (en) * | 1986-03-17 | 1988-08-09 | American Telephone And Telegraph Company, At&T Bell Laboratories | Dial-up telephone network equipment for requesting an identified selection |
US5289542A (en) * | 1991-03-04 | 1994-02-22 | At&T Bell Laboratories | Caller identification system with encryption |
US5329581A (en) * | 1991-12-23 | 1994-07-12 | At&T Bell Laboratories | Target area calling system |
US5444774A (en) * | 1992-06-26 | 1995-08-22 | At&T Corp. | Interactive queuing sytem for call centers |
US5521965A (en) * | 1992-08-14 | 1996-05-28 | Bell Atlantic Network Services, Inc. | Apparatus and method for handling busy calls in telephone network |
US6618474B1 (en) | 1999-03-08 | 2003-09-09 | Morris Reese | Method and apparatus for providing to a customer a promotional message between ringing signals or after a call waiting tone |
US20110029836A1 (en) * | 2009-07-30 | 2011-02-03 | Cleversafe, Inc. | Method and apparatus for storage integrity processing based on error types in a dispersed storage network |
US8489915B2 (en) * | 2009-07-30 | 2013-07-16 | Cleversafe, Inc. | Method and apparatus for storage integrity processing based on error types in a dispersed storage network |
US20130275834A1 (en) * | 2009-07-30 | 2013-10-17 | Cleversafe, Inc. | Method and apparatus for storage integrity processing based on error types in a dispersed storage network |
US8819516B2 (en) * | 2009-07-30 | 2014-08-26 | Cleversafe, Inc. | Method and apparatus for storage integrity processing based on error types in a dispersed storage network |
CN111618854A (en) * | 2020-05-26 | 2020-09-04 | 中国人民解放军国防科技大学 | Task segmentation and collaboration method for security robot |
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