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公开(公告)号：JP2000236242A
公开(公告)日：2000-08-29
申请号：JP2000017125
申请日：2000-01-26
Applicant: INFINEON TECHNOLOGIES CORP , IBM
Inventor： CHU ALBERT M , FIFIELD JOHN A , ROTELLA JASON E , DORTU JEAN-MARC
Abstract: PROBLEM TO BE SOLVED: To obtain a circuit which is improved in the timing between input and output pulse trains. SOLUTION: This circuit is equipped with a delay lock loop 32 which has a receiver 33, a pulse generator 36, a logic network 50, and a variable delay line 34, and extract two pulse trains having side edges of the same type from the leading and trailing edges of the input pulse train, selects the time delay degree of the variable delay line, and generates a combined output pulse train which has a predetermined phase relation with the input pulse train.
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公开(公告)号：DE60027065T2
公开(公告)日：2006-10-05
申请号：DE60027065
申请日：2000-01-21
Applicant: IBM , INFINEON TECHNOLOGIES AG
Inventor： CHU ALBERT M , FIFIELD JOHN A , ROTELLA JASON E , DORTU JEAN-MARC
Abstract: A circuit and method are provided wherein a receiver receives an input train of pulses. The circuit includes a delay-locked-loop coupled to an output of the receiver. The delay-locked-loop includes a pulse generator responsive to received input train of pulses produced at the output of the receiver for producing first pulses in response to the leading edges of the received input train of pulses and second pulses in response to the trailing edges of received input train of pulses. The leading edge of the first pulse has the same edge type as the leading edge of the second pulse (i.e., the leading edge of the first pulse and the leading edge of the second pulse are either both rising edge types or both falling edges types). The first pulses and the second pulses are combined into a composite input signal comprising the first and second pulses with the leading edge of the first pulse maintaining the same edge type. The delay-locked-loop also includes a variable delay line fed by the composite input signal for producing a composite output train of pulses comprising both the first train of pulses and the second train of pulses after a selected time delay provided by the delay line. The delay-locked-loop is responsive to one of the first train of pulses and the second train of pulses in the composite output train of pulses for selecting the time delay of the variable delay line so as to produce the composite output train of pulses with a predetermined phase relationship to the input train of pulses.
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公开(公告)号：DE60027065D1
公开(公告)日：2006-05-18
申请号：DE60027065
申请日：2000-01-21
Applicant: IBM , INFINEON TECHNOLOGIES AG
Inventor： CHU ALBERT M , FIFIELD JOHN A , ROTELLA JASON E , DORTU JEAN-MARC
Abstract: A circuit and method are provided wherein a receiver receives an input train of pulses. The circuit includes a delay-locked-loop coupled to an output of the receiver. The delay-locked-loop includes a pulse generator responsive to received input train of pulses produced at the output of the receiver for producing first pulses in response to the leading edges of the received input train of pulses and second pulses in response to the trailing edges of received input train of pulses. The leading edge of the first pulse has the same edge type as the leading edge of the second pulse (i.e., the leading edge of the first pulse and the leading edge of the second pulse are either both rising edge types or both falling edges types). The first pulses and the second pulses are combined into a composite input signal comprising the first and second pulses with the leading edge of the first pulse maintaining the same edge type. The delay-locked-loop also includes a variable delay line fed by the composite input signal for producing a composite output train of pulses comprising both the first train of pulses and the second train of pulses after a selected time delay provided by the delay line. The delay-locked-loop is responsive to one of the first train of pulses and the second train of pulses in the composite output train of pulses for selecting the time delay of the variable delay line so as to produce the composite output train of pulses with a predetermined phase relationship to the input train of pulses.
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