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US5469083A Expired / Lapsed US ⏱️ 0.0 years remaining

Circuit configuration for synchronous clock generation of at least two clock signals

Assignee: Infineon Technologies AG
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Filing: 1994-11-16
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Granted: 1995-11-21
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Expires: 2014-11-16
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Abstract

Abstract A circuit configuration for synchronous clock generation of at least two clock signals, includes an enable stage for receiving a clock signal and enabling the clock signal under the control of an enable signal. A branching stage for receiving the enabled clock signal from the enable stage generates at least two clock signals from the enabled clock signal. Logic and/or driver stages are each connected downstream of the branching stage for receiving a respective one of the clock signals generated by the branching stage. Each of the logic and/or driver stages has an output at which a respective output clock signal can be picked up. Amplifiers are each connected to the output of a respective one of the other stages and are associated with a respective one of the output clock signals, for detecting edges of the output clock signals. A logic array connected to the amplifiers logically links the output signals generated by the amplifiers. The logic array generates the enable signal for controlling the enable stage.

Inventors

  • 👤 Harald Puester
  • 👤 Hans-Gerd Kirchhoff

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 21:59
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/15; H03K5/15013; H03K5/1506

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 168 words
A circuit configuration for synchronous clock generation of at least two clock signals, comprising: an enable stage for receiving a clock signal and enabling the clock signal under the control of an enable signal; a branching stage for receiving the enabled clock signal from said enable stage and generating at least two clock signals from the enabled clock signal; other stages each being connected downstream of said branching stage for receiving a respective one of the clock signals generated by said branching stage, each of said other stages having an output at which a respective output clock signal can be picked up; amplifiers each being connected to the output of a respective one of said other stages and being associated with a respective one of the output clock signals, for detecting edges of the output clock signals; and a logic array connected to said amplifiers for logical linking of the output signals generated by said amplifiers, said logic array generating the enable signal for controlling said enable stage.
Claim 2
Dependent Claim 168 words
A circuit configuration for synchronous clock generation of at least two clock signals, comprising: an enable stage for receiving a clock signal and enabling the clock signal under the control of an enable signal; a branching stage for receiving the enabled clock signal from said enable stage and generating at least two clock signals from the enabled clock signal; other stages each being connected downstream of said branching stage for receiving a respective one of the clock signals generated by said branching stage, each of said other stages having an output at which a respective output clock signal can be picked up; amplifiers each being connected to the output of a respective one of said other stages and being associated with a respective one of the output clock signals, for detecting edges of the output clock signals; and a logic array connected to said amplifiers for logical linking of the output signals generated by said amplifiers, said logic array generating the enable signal for controlling said enable stage.
Claim 3
Dependent Claim 14 words
The circuit configuration according to claim 1, wherein said other stages are logic stages.
Claim 4
Dependent Claim 14 words
The circuit configuration according to claim 1, wherein said other stages are driver stages.
Claim 5
Dependent Claim 17 words
The circuit configuration according to claim 1, wherein said other stages are logic stages and driver stages.
Claim 6
Dependent Claim 24 words
The circuit configuration according to claim 1, wherein said amplifiers have an operating point located near a negative supply potential of a supply voltage.

References Cited (Backward Citations)

US3783254A Cited
US4317053A Cited
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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) 1998-11-20 1999-05-22 1999-11-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-11-20 2003-05-22 2003-11-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-11-20 2007-05-22 2007-11-21 $7700.00 Window Closed / Lapsed

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