公开(公告)号：US20170169763A1

公开(公告)日：2017-06-15

申请号：US15260580

申请日：2016-09-09

Applicant: Apple Inc.

Inventor： Yafei BI ,  Lei HE ,  Mohammad B. VAHID FAR ,  Mir B. GHADERI ,  Venu Madhav DUGGINENI ,  Vanessa C. HEPPOLETTE ,  Joshua P. DE CESARE ,  Hyuck-Jae LEE

IPC: G09G3/3258 ,  G09G3/36 ,  G09G3/34 ,  G09G3/3266

CPC classification number: G09G5/003 ,  G09G2310/08 ,  G09G2320/06 ,  G09G2330/021

Abstract: This application relates to systems, methods, and apparatus for transitioning a display device between operating modes using a single dedicated pin of a circuit connected to the display device. The dedicated pin can receive a packet signal corresponding to an operating mode for the display device, and the circuit can thereafter cause the display device to transition into the desired operating mode in response to receiving the packet signal. The operating mode can be a low power on mode where an interface connected to the circuit is deactivated and at least some circuitry of the display device is throttled or powered off. The display device can be driven in an all black state while in the low power on mode, thereby allowing the display device to more quickly transition out of the low power on mode compared to when the display device is completely off.

公开(公告)号：US20130229164A1

公开(公告)日：2013-09-05

申请号：US13632078

申请日：2012-09-30

Applicant: APPLE INC.

Inventor： Ahmad AL-DAHLE ,  Yafei BI ,  Mir B. GHADERI ,  Wei H. YAO

IPC: G05F5/00

CPC classification number: G05F1/613

Abstract: One embodiment of an apparatus to control and sense a voltage through a single node can include a comparator to monitor single node voltage, a transistor to discharge voltage through the single node and control logic. The control logic can have at least two operational phases when actively controlling the voltage through the single node. In a first phase, the control logic can configure the comparator to determine if the single node voltage is greater than a reference voltage. In a second phase, the control logic can configure the transistor to discharge voltage through the single node when the comparator has previously indicated that the single node voltage is greater than a reference voltage. The control logic can alternatively execute first and second phases to discharge the voltage to a predetermined level.

Abstract translation: 用于控制和感测通过单个节点的电压的装置的一个实施例可包括监视单节点电压的比较器，通过单个节点放电电压的晶体管和控制逻辑。 当通过单个节点主动控制电压时，控制逻辑可以具有至少两个操作阶段。 在第一阶段中，控制逻辑可以配置比较器以确定单个节点电压是否大于参考电压。 在第二阶段中，当比较器先前已经指示单个节点电压大于参考电压时，控制逻辑可以配置晶体管以通过单个节点放电电压。 控制逻辑可替代地执行第一和第二阶段以将电压放电至预定水平。