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US4672587A Expired / Lapsed US ⏱️ 0.0 years remaining

Integratable, bus-oriented transmission system

Assignee: Siemens AG
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Filing: 1984-05-29
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Granted: 1987-06-09
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Expires: 2004-05-29
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Abstract

Abstract A monolithically integratable transmission system for binary information has at least one address source which is connected to at least one address sink via an address bus. The address sink is respectively allocated to a register means connected to a data bus. A clock generator generates a first clock signal and a non-overlapping, phase-shifted second clock signal. The address bus and the data bus are precharged during the first clock signal and access of an addressed register means to the data bus occurs during the second clock signal. In the time span between the two clock signals, the address bus is charged with the address signals by discharging.

Inventors

  • 👤 Gerhard Geiger
  • 👤 Michael Strafner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 22:44
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/38; G06F13/42; G06F13/4204; G06F13/4208; G06F13/4217; G06F13/40; G06F13/4063; G06F13/4068; G06F13/4072; G06F13/4077; Y; Y02; Y02D; Y02D10/00

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 171 words
A monolithically integrated transmission system for binary information, comprising: at least one address source means connected via an address bus to at least one address sink means for creating selection signals; at least one register means connected to the address sink means for write-in and read-out of binary coded data and for activation by the selection signals via a control line, said register means being connected to a data bus; clock generator means for generating first and second phase shifted clock signals having non-overlapping activation levels; a first precharging means for precharging the address bus in accordance with the activation level of the first clock signal; a second precharging means for precharging the data bus in accordance with the activation level of said first clock signal; means for addressing said register means in accordance with the activation level of said second clock signal; and said one address source means charging the address bus with an address signal in a time between the activation levels of said first and second clock signals.
Claim 2
Dependent Claim 171 words
A monolithically integrated transmission system for binary information, comprising: at least one address source means connected via an address bus to at least one address sink means for creating selection signals; at least one register means connected to the address sink means for write-in and read-out of binary coded data and for activation by the selection signals via a control line, said register means being connected to a data bus; clock generator means for generating first and second phase shifted clock signals having non-overlapping activation levels; a first precharging means for precharging the address bus in accordance with the activation level of the first clock signal; a second precharging means for precharging the data bus in accordance with the activation level of said first clock signal; means for addressing said register means in accordance with the activation level of said second clock signal; and said one address source means charging the address bus with an address signal in a time between the activation levels of said first and second clock signals.
Claim 3
Dependent Claim 35 words
A transmission system according to claim 1 wherein an inhibit means is provided at each output of the address source means for inhibiting an address signal during the activation level of the first clock signal.
Claim 4
Dependent Claim 34 words
A transmission system according to claim 1 wherein an inhibit circuit means is provided at an output of the address sink for inhibiting selection signals during the activation level of the first clock signal.
Claim 5
Dependent Claim 34 words
A transmission system according to claim 2 wherein the inhibit circuit means comprises a NOR gate which is connected at an input side to the address source means and to the first clock line.
Claim 6
Dependent Claim 118 words
A transmission system according to claim 1 wherein said clock generator means connects to an output of a control loop circuit means for emitting a control signal to influence beginning of the second clock signal at the clock generator means; said control loop circuit means comprising a control line which is prechargeable by a third precharging means during the activation level of the first clock signal; said control loop circuit means having means for simulating a transit time behavior of the address bus, said means including at least one delay means; and said control loop circuit means having a discharge means for discharging the control line at an end of the activation level of the first clock signal.
Claim 7
Dependent Claim 178 words
A monolithically integrated transmission system for binary information, comprising: at least one address source means connected via an address bus to at least one address sink means for creating selection signals; at least one register means for write-in and read-out of binary coded data connected to the address sink means, said register means being activated by the selection signals via a respective control line, said register means being connected to a data bus; clock generator means for generating first and second phase shifted clock signals having respective activation levels which are non-overlapping; a first precharging means for precharging the control line in accordance with the activation level of the first clock signal; a second precharging means for precharging the data bus in accordance with the activation level of said first clock signal; means for addressing said register means in accordance with the activation level of said second clock signal; and said at least one address source means charging the address bus with the selection signals in a time between activation levels of said first and second clock signals.
Claim 8
Dependent Claim 178 words
A monolithically integrated transmission system for binary information, comprising: at least one address source means connected via an address bus to at least one address sink means for creating selection signals; at least one register means for write-in and read-out of binary coded data connected to the address sink means, said register means being activated by the selection signals via a respective control line, said register means being connected to a data bus; clock generator means for generating first and second phase shifted clock signals having respective activation levels which are non-overlapping; a first precharging means for precharging the control line in accordance with the activation level of the first clock signal; a second precharging means for precharging the data bus in accordance with the activation level of said first clock signal; means for addressing said register means in accordance with the activation level of said second clock signal; and said at least one address source means charging the address bus with the selection signals in a time between activation levels of said first and second clock signals.
Claim 9
Dependent Claim 35 words
A transmission system according to claim 6 wherein an inhibit circuit means is provided at an output of the address bus for inhibiting a selection signal during the activation level of the first clock signal.
Claim 10
Dependent Claim 33 words
A transmission system according to claim 7 wherein the inhibit circuit means comprises a NOR gate which is connected at an input side to the address bus and to the first clock line.
Claim 11
Dependent Claim 86 words
A transmission system according to claim 6 wherein said clock generator means connects to an output of a control loop circuit means for emitting a control signal to influence beginning of the second clock signal at the clock generator means; said control loop circuit means having means for simulating a transit time behavior of the control line said means including at least one delay means, and said control means having a discharge means for discharging a duplicate control line in dependence upon the first clock signal.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-06-08 1990-12-08 1991-06-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-06-08 1994-12-08 1995-06-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-06-08 1998-12-08 1999-06-09 $7700.00 Window Closed / Lapsed

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