Resistance coupled data transmission arrangement
Patent 5317597 Issued on May 31, 1994. Estimated Expiration Date: 
March 5, 2013. 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.
March 5, 2013. 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 3825682 4280221 Optically coupled differential data link Balanced bidirectional or party line transceiver accommodating common-mode offset voltage Communication system equipped with an AC coupling receiver circuit Patent #: 5050187 InventorApplicationNo. 027543 filed on 03/05/1993US Classes:375/257CABLE SYSTEMS AND COMPONENTSExaminersPrimary: Chin, StephenAssistant: Tse, Young T. Attorney, Agent or FirmForeign Patent References
International ClassH04B 003/54Foreign Application Priority Data1989-08-16 DEAbstractA data transmission arrangement powered by at least a supply voltage source (UB), includes a transmitter (11), a receiver (13) and a data transmission path (12) operated in the differential mode and terminated by its characteristic impedance. A reliable detection is possible even upon rupture of one of the two transmission wires (18, 21) by the use of a pure resistance network including the resistors (17, 20) of the transmitter (11), of the data transmission path (12) having the resistors (22, 23) and the resistors (28, 29, 30, 31) of the receiver (13), at least each time one matching resistor (24, 26) being provided on the receiver side connected each to a transmission wire (18, 21) of the data transmission path (12) for producing opposite levels (U3, U4) in the receiver (13) and for producing an absolute level in the case of disturbance of a transmission wire (18 or 21). | |
