Title:
【発明の名称】周波数ステアリング機能を有する2状態位相検波器
Document Type and Number:
Japanese Patent JP2705309
Kind Code:
B2
Abstract:
A digital phase detector for providing an output characterized by the phase difference of a first input signals and a second input signal is provided. The phase detector comprises a first and a second dual state phase detector, each providing an output having a duty cycle corresponding to the phase difference of the input signals. The phase detectors operate linearly for a range of 360 degrees of phase difference, and provide a signal when the phase diference between the two input signals has exceeded the 360 degree range. The first phase detector provides the phase difference of the first and second input signals, while the second phase detector provides the phase difference between the second and the inverse of the first input signal. The output of the phase detector of the invention is provided by the phase detector having the phase difference within the 360 degree range.
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Inventors:
Martin, Frederick Elle
Application Number:
JP50783290A
Publication Date:
January 28, 1998
Filing Date:
May 17, 1990
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
H03K5/26; G01R25/00; H03D13/00; H03L7/085; H03L7/087; H03L7/097; (IPC1-7): H03K5/26; H03L7/087; H03L7/097
Domestic Patent References:
| JP61288515A | ||||
| JP1136417A | ||||
| JP6460010A | ||||
| JP63296589A | ||||
| JP63123225A | ||||
| JP61288515A | ||||
| JP4712923B1 | ||||
| JP601586B2 |
Attorney, Agent or Firm:
Masanori Honjo (1 person outside)