Title:
DISCRIMINATING CIRCUIT
Document Type and Number:
Japanese Patent JP3491061
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To place a discriminating circuit in high-speed operation.
SOLUTION: This discriminating circuit is constituted by connecting resonance tunnel diodes 1 and 2 for driving and loading between a clock terminal 4 and the ground and connecting a photodiode 3 in parallel to the resonance tunnel diode 1 for driving and takes a discrimination signal out of the common connection point of both the tunnel diodes 1 and 2 and the emitter size of the resonance tunnel diode 2 for loading is made larger than that of the resonance tunnel diode 1 for driving so that the difference obtained by subtracting the peak current value of the resonance tunnel diode 1 for driving from the peak value of the resonance tunnel diode 1 for driving is larger than the difference obtained by subtracting the capacity AC current of the resonance tunnel diode 2 for loading from the sum of the capacity AC current of the tunnel diode 1 for driving and the capacity AC current of the resonance tunnel diode 2 for loading.
Inventors:
Kouichi Sano
Koichi Murata
Koichi Murata
Application Number:
JP14093899A
Publication Date:
January 26, 2004
Filing Date:
May 21, 1999
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H01L31/10; H01L29/88; H03K19/14; H04B10/40; H04B10/50; H04B10/60; H04B10/67; H04B10/69; H04L25/03; (IPC1-7): H03K19/14; H01L29/88; H01L31/10; H04B10/04; H04B10/06; H04B10/14; H04B10/26; H04B10/28; H04L25/03
Domestic Patent References:
| JP1168541A | ||||
| JP1198004A | ||||
| JP1168521A |
Attorney, Agent or Firm:
Tsuneaki Nagao
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