Demodulation circuit
First Claim
Patent Images
1. A demodulation circuit, comprising:
- an input terminal inputting a current amplitude modulated signal;
a first transistor connected to said input terminal;
a capacitance connected to a control terminal of said first transistor;
a diode connected between said input terminal and the control terminal of said first transistor;
a first current source applying a current of said input terminal; and
a first comparator comparing a voltage of said input terminal and a voltage of the control terminal of said first transistor.
1 Assignment
0 Petitions
Accused Products
Abstract
A demodulation circuit, including: an input terminal (IN) inputting a current amplitude modulated signal; a first transistor (101) connected to the input terminal; a capacitance (105) connected to a control terminal of the first transistor; a diode (102) connected between the input terminal and the control terminal of the first transistor; and a first current source (104) applying a current of the input terminal, is provided.
-
Citations
19 Claims
-
1. A demodulation circuit, comprising:
-
an input terminal inputting a current amplitude modulated signal; a first transistor connected to said input terminal; a capacitance connected to a control terminal of said first transistor; a diode connected between said input terminal and the control terminal of said first transistor; a first current source applying a current of said input terminal; and a first comparator comparing a voltage of said input terminal and a voltage of the control terminal of said first transistor. - View Dependent Claims (2, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
3. A demodulation circuit, comprising:
-
an input terminal inputting a current amplitude modulated signal; a first transistor connected to said input terminal; a capacitance connected to a control terminal of said first transistor; a diode connected between said input terminal and the control terminal of said first transistor; and a first current source applying a current of said input terminal, wherein said diode is constituted by a field-effect transistor of which gate and drain are mutually connected.
-
-
5. A demodulation circuit, comprising:
-
an input terminal inputting a current amplitude modulated signal; a first transistor connected to said input terminal; a capacitance connected to a control terminal of said first transistor; a diode connected between said input terminal and the control terminal of said first transistor; and a first current source applying a current of said input terminal, wherein said first current source is connected to the control terminal of said first transistor and includes a field-effect transistor of which gate and drain are connected to the control terminal of said first transistor.
-
Specification