Apparatus for sampling and holding analog data for a liquid crystal display
AssigneeSharp Kabushiki Kaisha
InventorsKiyohisa Matsui, Junji Tanaka, Yoshiki Sano
Life of this patent
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Abstract
A sample/hold apparatus includes at least one sample/hold circuit. The at least one sample/hold circuit has a resistor connected to an input bus at one end thereof, a sampling gate connected to the other end of the resistor at one end thereof for opening and closing in response to a sampling signal supplied thereto, and a first capacitor connected to the other end of the sampling gate at one end thereof for holding analog data supplied from the input bus through the resistor and the sampling gate.
Claims27
A sample/hold apparatus including at least one sample/hold circuit, said at least one sample/hold circuit comprising:
- a resistor connected to an input bus at one end thereof;
- a sampling gate connected to the other end of said resistor at one end thereof for opening and closing in response to a sampling signal supplied thereto;
- and
- a first capacitor connected to the other end of said sampling gate at one end thereof for holding analog data supplied from said input bus through said resistor and said sampling gate.
A sample/hold apparatus including at least one sample/hold circuit, said at least one sample/hold circuit comprising:
- a resistor connected to an input bus at one end thereof;
- a sample gate connected to the other end of said resistor at one end thereof for opening and closing in response to a sampling signal supplied thereto;
- a first capacitor connected to the other end of said sampling gate at one end thereof for holding analog data supplied from said input bus through said resistor and said sampling gate;
- a transfer gate connected to the other end of said sampling gate at one end thereof for opening and closing in response to a transfer signal supplied thereto;
- and
- a second capacitor connected to the other end of said transfer gate at one end thereof for holding the analog data supplied from said first capacitor through said transfer gate.
A sample/hold apparatus including two sample/hold circuits, each of said two sample/hold circuits comprising:
- a resistor connected to an input bus at one end thereof;
- a sampling gate connected to the other end of said resistor at one end thereof for opening and closing in response to a sampling signal supplied thereof;
- a first capacitor connected to the other end of said sampling gate at one end thereof for holding analog data supplied from said input bus through said resistor and said sampling gate;
- wherein said resistors have equivalent resistances and said first capacitors have equivalent capacitances.
A sample/hold apparatus including a plurality of sample/hold circuits, each of said plurality of sample/hold circuits comprising:
- a resistor connected to an input bus at one end thereof;
- a sampling gate connected to the other end of said resistor at one end thereof for opening and closing in response to a sampling signal supplied thereto;
- and
- a first capacitor connected to the other end of said sampling gate at one end thereof for holding analog data supplied from said input bus through said resistor and said sampling gate.
Dependencies are inferred from the claim text.