-
公开(公告)号：DE3377858D1
公开(公告)日：1988-09-29
申请号：DE3377858
申请日：1983-06-01
Applicant: IBM
Inventor： BRICKMAN NORMAN FREDERICK , ROSENBAUM WALTER STEVEN
Abstract: An improved system for compacting text data to be transmitted over communications lines and thereby reduce the data volume and transmission time. Transmitting and receiving text processing systems are provided with identical library memories containing words commonly used in correspondence. Each word in a document to be communicated is compared to the transmitting system's word library and, if found in the library, only the library address is transmitted. If the word is not found in the library, then it is added to the transmitting system's library, sent, and added to the receiving system's library. The receiving system reconstructs the document by using the received addresses to access the appropriate words from its library and place them in the document. The system combines this word match encoding with character match encoding and facsimile run length encoding for communicating words not found in the system library.
-
Patent Agency Ranking
公开(公告)号：DE3170469D1
公开(公告)日：1985-06-20
申请号：DE3170469
申请日：1981-02-25
Applicant: IBM
-
公开(公告)号：BR8402764A
公开(公告)日：1985-05-14
申请号：BR8402764
申请日：1984-06-07
Applicant: IBM
Inventor： BENSADON JOSEPH MARBURG , BRICKMAN NORMAN FREDERICK
Abstract: A system to provide X.21 in-band call establishment signaling in the data path of a TDMA data communication system by utilizing a data port (15), digital switch and telephone signaling call processor in a satellite communications controller. The system includes an X.21 signaling protocol between a data terminal equipment and the satellite communications controller on the terrestrial side and allows self-switched digital data port functions in lieu of associated voice port and line functions. The signaling rate is the same as the line data rate. The data port goes through three generalized states during a normal call process. The first general state is idle, the second general state is the signaling state and the third general state is the data transfer state. At the start of the signaling state, the call request input to the call processor is activated for the appropriate port. Call establishment signals are then processed through the digital switch and an X.21 adapter to the system's control processor (32). In the third data transfer state, the call establishment signaling has been completed and all data bits go through the digital switch and are transmitted to the digital interface. At the end of the call the data port goes back to the first, idle state. … The system allows for X.21 in-band signaling on the terrestrial side of the satellite communications controller so that a digital data port can accept X.21 in-band call processing type signals. The digital data port detects the call processing type signals with the X.21 protocol and passes them on to the X.21 adapter in the satellite communications controller.
-
公开(公告)号：DE3462648D1
公开(公告)日：1987-04-16
申请号：DE3462648
申请日：1984-05-25
Applicant: IBM
Inventor： BENSADON JOSEPH MARBURG , BRICKMAN NORMAN FREDERICK
Abstract: A system to provide X.21 in-band call establishment signaling in the data path of a TDMA data communication system by utilizing a data port (15), digital switch and telephone signaling call processor in a satellite communications controller. The system includes an X.21 signaling protocol between a data terminal equipment and the satellite communications controller on the terrestrial side and allows self-switched digital data port functions in lieu of associated voice port and line functions. The signaling rate is the same as the line data rate. The data port goes through three generalized states during a normal call process. The first general state is idle, the second general state is the signaling state and the third general state is the data transfer state. At the start of the signaling state, the call request input to the call processor is activated for the appropriate port. Call establishment signals are then processed through the digital switch and an X.21 adapter to the system's control processor (32). In the third data transfer state, the call establishment signaling has been completed and all data bits go through the digital switch and are transmitted to the digital interface. At the end of the call the data port goes back to the first, idle state. … The system allows for X.21 in-band signaling on the terrestrial side of the satellite communications controller so that a digital data port can accept X.21 in-band call processing type signals. The digital data port detects the call processing type signals with the X.21 protocol and passes them on to the X.21 adapter in the satellite communications controller.
-
公开(公告)号：DE3164641D1
公开(公告)日：1984-08-16
申请号：DE3164641
申请日：1981-02-25
Applicant: IBM
Inventor： BRICKMAN NORMAN FREDERICK , MCDONALD EARL JAMES
-
公开(公告)号：DE2359178A1
公开(公告)日：1974-06-06
申请号：DE2359178
申请日：1973-11-28
Applicant: IBM
Inventor： BRICKMAN NORMAN FREDERICK , SAKALAY FRED ELIAS
Abstract: A large capacity, low speed backing store is organized to allow for high speed transfer of a block (page) of data to a cache associated with the Central Processing Unit (CPU). When a word is called out by the CPU, the other words in the same page are sequentially transferred to the intermediate buffer cache under the control of a ring circuit associated with the backing store. The first word transferred is the only word which must be specifically requested by the CPU; the transfer is accomplished at high speed within approximately the same machine time that the requested word is transferred from the backing store to the CPU.
-
-
-
-
-
Search Results
6
records
(took 0.015 seconds)
