-
公开(公告)号：US09344069B1
公开(公告)日：2016-05-17
申请号：US14743409
申请日：2015-06-18
申请人： Hypres, Inc.
发明人： Amol Ashok Inamdar
CPC分类号： H03K5/131 , H03K3/38 , H03K5/13 , H03K2005/00286 , H03L7/0805 , H03L7/0814 , H03L7/16
摘要： An important component in digital circuits is a phase rotator, which permits precise time-shifting (or equivalently, phase rotation) of a clock signal within a clock period. A digital phase rotator can access multiple discrete values of phase under digital control. Such a device can have application in digital clock synchronization circuits, and can also be used for a digital phase modulator that encodes a digital signal. A digital phase rotator has been implemented in superconducting integrated circuit technology, using rapid single-flux-quantum logic (RSFQ). This circuit can exhibit positive or negative phase shifts of a multi-phase clock. Arbitrary precision can be obtained by cascading a plurality of phase rotator stages. Such a circuit forms a phase-modulator that is the core of a direct digital synthesizer that can operate at multi-gigahertz radio frequencies.
-
公开(公告)号：US10355681B1
公开(公告)日：2019-07-16
申请号：US15687020
申请日：2017-08-25
申请人： Hypres, Inc.
发明人： Amol Ashok Inamdar
摘要： An important component in digital circuits is a phase rotator, which permits precise time-shifting (or equivalently, phase rotation) of a clock signal within a clock period. A digital phase rotator can access multiple discrete values of phase under digital control. Such a device can have application in digital clock synchronization circuits, and can also be used for a digital phase modulator that encodes a digital signal. A digital phase rotator has been implemented in superconducting integrated circuit technology, using rapid single-flux-quantum logic (RSFQ). This circuit can exhibit positive or negative phase shifts of a multi-phase clock. Arbitrary precision can be obtained by cascading a plurality of phase rotator stages. Such a circuit forms a phase-modulator that is the core of a direct digital synthesizer that can operate at multi-gigahertz radio frequencies.
-
公开(公告)号：US09748937B1
公开(公告)日：2017-08-29
申请号：US15155687
申请日：2016-05-16
申请人： Hypres, Inc.
发明人： Amol Ashok Inamdar
CPC分类号： H03K5/131 , H03K3/38 , H03K5/13 , H03K2005/00286 , H03L7/0805 , H03L7/0814 , H03L7/16
摘要： An important component in digital circuits is a phase rotator, which permits precise time-shifting (or equivalently, phase rotation) of a clock signal within a clock period. A digital phase rotator can access multiple discrete values of phase under digital control. Such a device can have application in digital clock synchronization circuits, and can also be used for a digital phase modulator that encodes a digital signal. A digital phase rotator has been implemented in superconducting integrated circuit technology, using rapid single-flux-quantum logic (RSFQ). This circuit can exhibit positive or negative phase shifts of a multi-phase clock. Arbitrary precision can be obtained by cascading a plurality of phase rotator stages. Such a circuit forms a phase-modulator that is the core of a direct digital synthesizer that can operate at multi-gigahertz radio frequencies.
-
-
搜索结果
3 条记录 (耗时 0.01 秒)
