Communication control unit
Patent 4903016 Issued on February 20, 1990. Estimated Expiration Date: 
July 5, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 5, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3903507 Method and apparatus for establishing a wideband communication facility through a communication network having narrow bandwidth channels Circuit arrangement for serial data transmission between a plurality of subscriber stations Patent #: 4785465 InventorsAssigneeApplicationNo. 215414 filed on 07/05/1988US Classes:340/3.53, Source address340/3.54, Destination address340/3.9, Control then monitoring370/420, For connecting plural subscribers to a network (i.e., network termination)370/432, Messages addressed to multiple destinations370/475, Address transmitted375/222Modems (data sets)ExaminersPrimary: Yusko, Donald J.Assistant: Lau, Yuk H. Attorney, Agent or FirmInternational ClassesG08C 017/00H04J 003/16 Foreign Application Priority Data1987-07-07 JPAbstractA communication control unit controls communication between a terminal and a communication network employing a multi-conjunction architecture, and comprises a transmitter/receiver for transmitting and receiving a signal to and from the communication network, a switch part for enabling signal transmission and reception between the terminal and the communication network through the transmitter/receiver in a first state and for disabling the signal transmission and reception between the terminal and the communication network through the transmitter/receiver in a second state, and a control part comprising a signal detecting circuit for detecting whether or not a signal received from the communication network through the transmitter/receiver is intended for the terminal coupled to the communication control unit. The control part controls the switch part to the first state when the signal detecting circuit detects that the signal received from the communication network through the transmitter/receiver is intended for the terminal coupled to the communication control unit.Field of SearchLine-clearing and circuit maintenance | |
