Invention Grant
- Patent Title: Digital to analog converter
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Application No.: US15697233Application Date: 2017-09-06
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Publication No.: US10200059B2Publication Date: 2019-02-05
- Inventor: Baris Cagdaser , Derek K. Shaeffer , Hopil Bae , Jesse Aaron Richmond , Jie Won Ryu , Kingsuk Brahma , Mohammad B. Vahid Far , Shingo Hatanaka , Yafei Bi , Yuichi Okuda
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: US CA Cupertino
- Agency: Fletcher Yoder PC
- Main IPC: H03M1/78
- IPC: H03M1/78 ; H03M1/76 ; H03M1/74 ; H03M1/68

Abstract:
A device includes a resistor string that includes a plurality resistors with voltage taps disposed therebetween. The device may select one particular voltage tap of the plurality of voltage taps based on received gray level data for a pixel of a display. The device also includes a first amplifier that may be coupled to a first terminal end of the resistor string. The device additionally includes a second amplifier that may be coupled to a second terminal end of the resistor string, wherein the plurality of voltage taps may each supply a tap voltage derived from a voltage between the first amplifier and the second amplifier, wherein any tap amplifier of the device coupled to a voltage tap of the plurality of voltage taps provides a reference voltage thereto.
Public/Granted literature
- US20180083648A1 DIGITAL TO ANALOG CONVERTER Public/Granted day:2018-03-22
Information query
IPC分类: