Acoustic charge transport selectable delay line and delay line oscillator formed therewith
First Claim
1. A delay device, comprising:
- a) a semi-conductor chip;
b) an acoustic charge transport channel disposed on said chip and having first and second opposite ends and a longitudinal axis;
c) means disposed at said first end of said channel for injecting an electronic signal into said channel;
d) means coupled to said channel for generating a single frequency, large amplitude surface acoustic wave through said channel along a propagation direction from said first end to said second end for thereby transporting the electronic signal through said channel;
e) a plurality of means operable associated with said channel end disposed along the propagation direction of the surface acoustic wave for non-destructively sensing the electronic signal as the electronic signal is transported by the surface acoustic wave;
f) means monolithically disposed on said chip and operably connected to said sensing means for preselecting any one of said sensing means, thereby extracting a delayed replica of the signal from said channel;
g) means operably connected to said preselecting means for processing the extracted delayed replica of the signal for generating an output; and
h) said generating means comprising a delay line oscillator operably coupled to said channel.
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Accused Products
Abstract
A delay device comprises a semi-conductor chip having acoustic charge transport channel disposed therein; a contact operably connected to and disposed at one end of the channel for injecting an electronic signal into the channel; a transducer for generating a single frequency, large amplitude acoustic surface wave through the channel for thereby transporting the electronic signal through the channel; a plurality of electrodes operably associated with the channel and disposed along the propagation path of the surface acoustic wave for non-destructively sensing the electronic signal; switches monolithically disposed on the chip and operably connected to the electrodes for preselecting any one of the electrodes, thereby extracting a delayed replica of the signal from the channel; and an output circuit for processing the extracted signal for generating an output.
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Citations
29 Claims
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1. A delay device, comprising:
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a) a semi-conductor chip; b) an acoustic charge transport channel disposed on said chip and having first and second opposite ends and a longitudinal axis; c) means disposed at said first end of said channel for injecting an electronic signal into said channel; d) means coupled to said channel for generating a single frequency, large amplitude surface acoustic wave through said channel along a propagation direction from said first end to said second end for thereby transporting the electronic signal through said channel; e) a plurality of means operable associated with said channel end disposed along the propagation direction of the surface acoustic wave for non-destructively sensing the electronic signal as the electronic signal is transported by the surface acoustic wave; f) means monolithically disposed on said chip and operably connected to said sensing means for preselecting any one of said sensing means, thereby extracting a delayed replica of the signal from said channel; g) means operably connected to said preselecting means for processing the extracted delayed replica of the signal for generating an output; and h) said generating means comprising a delay line oscillator operably coupled to said channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A delay device, comprising:
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a) a semi-conductor chip; b) an acoustic charge transport channel disposed on said chip and having first and second opposite ends and a longitudinal axis; c) an ohmic contact operably associated with said channel for injecting an electronic signal to said channel; d) a drive transducer operably associated with said first end of said channel for converting an applied signal into a single frequency, large amplitude surface acoustic wave for propagating through said channel along a propagation direction from said first end to said second end for thereby transporting the electronic signal through said channel; e) a Schottky barrier gate disposed adjacent and electrically coupled to said ohmic contact for controlling the injection of the electronic signal by said ohmic contact; f) said Schottky barrier gate is "U"-shaped and said ohmic contact is disposed within said "U"; g) an insulating boundary disposed in front of said ohmic contact relative to the propagation direction of said surface acoustic wave; h) at least one pick-up transducer operably associated with said channel for picking up the generated surface acoustic wave; i) an amplifier having an output and an input connected to said drive transducer and said at least one pick-up transducer, respectively; j) a plurality of electrodes operably associated with said channel and disposed along the propagation direction of the surface acoustic wave for non-destructively sensing the electronic signal as the electronic signal is transported by the surface acoustic wave; k) means monolithically disposed on said chip and operably connected to said electrodes for preselecting any one of said electrodes, thereby extracting a delayed replica of the signal from said channel; and l) means operably connected to said preselecting means for processing the extracted delayed replica of the signal for generating an output. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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Specification