Electronic digital logic circuitry – Signal sensitivity or transmission integrity – Bus or line termination
Patent
1995-09-28
1998-06-23
Chin, Wellington
Electronic digital logic circuitry
Signal sensitivity or transmission integrity
Bus or line termination
375254, 375257, 375296, 333 12, 333 173, H03K 190175
Patent
active
057709505
ABSTRACT:
In a data transmission system having a first and a second data transmission device and a transmission line that is not terminated, a method of minimizing signal reflection along the transmission line is described that includes the step of connecting the first and second data transmission devices to the transmission line such that the distance between the first and second data transmission devices is substantially proportional to a wavelength of a predetermined frequency. Data to be transmitted from the first data transmission device to the second data transmission device via the transmission line are encoded in the first data transmission device such that energy of the encoded data is substantially concentrated around the predetermined frequency to minimize the signal reflection without terminating the transmission line. A data transmission system with minimized signal reflection is also described.
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Trefney Ralph P.
Zurcher Daniel F.
Chin Wellington
Cisco Systems Inc.
Corrielus Jean B.
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