Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Patent
1994-12-12
1996-05-21
Hoff, Marc S.
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
341146, H03M 172
Patent
active
055193960
ABSTRACT:
An n-bit analog processing circuit constructed with network swappers has n stages and an input port for inputting an analog signal to be processed. Each of the n stages includes first and second reference input ports, at least one swappable network having first and second terminals, and a switching element that is responsive to a digital input signal for varying a connectivity of the first and second terminals with respect to the first and second reference input ports. Each of the n networks has a primary electrical characteristic that is binarily weighted with respect to others of the networks. The primary electrical characteristic may be resistance, capacitance, capacitive reactance, inductance, inductive reactance, voltage potential, gain, transconductance, superconductance, time delay, permeability, electrical or optical conductor length, and/or winding turns. A characteristic of an analog signal appearing at an output port is a function of an analog signal applied between the first and second reference input ports of a most significant stage, and is also a function of an n-bit digital signal (binary or Gray code) that is applied to the n-stages.
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Hoff Marc S.
Intellectual Property Development Associates of Connecticut, Inc
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