公开(公告)号：US10263766B1

公开(公告)日：2019-04-16

申请号：US16005231

申请日：2018-06-11

Applicant: QUALCOMM Incorporated

Inventor： George Alan Wiley ,  Chulkyu Lee

IPC: H04L7/00 ,  H04L7/02

Abstract: Methods, apparatus, and systems for data communication over a multi-wire, multi-phase interface are disclosed. A method includes recovering a first clock signal from transitions between pairs of symbols representative of successive signaling states of a 3-wire interface, where a pulse in the first clock signal is generated in response to an earliest-occurring transition between the first and second symbols in one of three difference signals representative of differences in state between two wires, determining direction of voltage change of a first transition detected on a first difference signal, providing a value selected based on the direction of voltage change as value of the first difference signal in the second symbol, and providing a value of a second difference signal captured during the first symbol as the value of the second difference signal when the second difference signal does not transition between the first symbol and the second symbol.

公开(公告)号：US10127167B2

公开(公告)日：2018-11-13

申请号：US15373645

申请日：2016-12-09

Applicant: QUALCOMM Incorporated

Inventor： Chulkyu Lee ,  George Alan Wiley

IPC: H04L7/00 ,  G06F13/36 ,  G06F13/42 ,  H04L25/49 ,  G06F13/40 ,  H04L25/14

Abstract: System, methods and apparatus are described that facilitate transmission of data, particularly between two devices within an electronic apparatus. Information is transmitted in N-phase polarity encoded symbols. Drivers may be adapted or configured to align state transitions on two or more connectors in order to minimize a transition period between consecutive symbols. The drivers may include circuits that advance or delay certain transitions. The drivers may include pre-emphasis circuits that operate to drive the state of a connector for a portion of the transition period, even when the connector is transitioned to an undriven state.

公开(公告)号：US20170264379A1

公开(公告)日：2017-09-14

申请号：US15454608

申请日：2017-03-09

Applicant: QUALCOMM Incorporated

Inventor： George Alan Wiley

IPC: H04B17/21 ,  H04L25/03

CPC classification number: H04B17/21 ,  G06F13/4295 ,  H04L7/10 ,  H04L25/03273 ,  H04L25/14 ,  H04L25/49

Abstract: Methods and apparatus are described that facilitate transmission of data, particularly between two devices within an electronic apparatus. In particular, a preamble for transmission in a sequence of symbols over a multi-wire communications interface, such as a MIPI C-PHY interface, is constructed to include one or more symbols each having a single state transition symbols for signaling a particular calibration preamble from a transmitter to a receiver over the multi-wire communications interface. The preamble, having only single state transition symbols, improves reliability of decoding the symbols at a receiver, including reception and decoding without the use of a calibration clock.

公开(公告)号：US20170220518A1

公开(公告)日：2017-08-03

申请号：US15486217

申请日：2017-04-12

Applicant: QUALCOMM Incorporated

Inventor： Shoichiro Sengoku ,  George Alan Wiley ,  Joseph Cheung

IPC: G06F13/42 ,  G06F13/364

CPC classification number: G06F13/4291 ,  G06F13/364 ,  G06F13/4282 ,  G06F13/4295 ,  H04L7/0331

Abstract: System, methods and apparatus are described that offer improved performance of a serial bus used for Inter-Integrated Circuit (I2C) and/or camera control interface (CCI) operations. Other described devices may be configured as a bus master or as a slave. In one method, a transmitter may generate a transition number from a set of bits, convert the transition number into a sequence of symbols, and transmit the sequence of symbols in the signaling state of a two-wire serial bus. Timing information may be encoded in the transitions between symbols of consecutive pairs of symbols in the sequence of symbols. For example, each transition may cause a change in the signaling state of at least one wire of the two-wire serial bus. A receiver may derive a receive clock from the transitions in order to receive and decode the sequence of symbols.

公开(公告)号：US09684487B2

公开(公告)日：2017-06-20

申请号：US14631078

申请日：2015-02-25

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee Mishra ,  Richard Dominic Wietfeldt ,  George Alan Wiley

IPC: G06F13/00 ,  G06F5/16 ,  G06F13/40 ,  G06F13/16 ,  G06F1/12 ,  G06F5/06 ,  G06F13/38

CPC classification number: G06F5/16 ,  G06F1/12 ,  G06F5/065 ,  G06F13/1673 ,  G06F13/385 ,  G06F13/4022

Abstract: A line multiplexed UART interface is provided that multiplexes a UART transmit and CTS functions on a transmit pin and that multiplexes a UART receive and RTS functions on a receive pin. In this fashion, the conventional need for an additional RTS pin and an additional CTS pin is obviated such that the line multiplexed UART interface uses just the transmit pin and the receive pin.

公开(公告)号：US09680666B2

公开(公告)日：2017-06-13

申请号：US14966236

申请日：2015-12-11

Applicant: QUALCOMM Incorporated

Inventor： George Alan Wiley ,  Glenn Raskin ,  Chulkyu Lee

IPC: H04B1/10 ,  H04L25/02 ,  H04L5/20 ,  H04L25/49

CPC classification number: H04L25/0272 ,  H04L5/20 ,  H04L25/0282 ,  H04L25/0294 ,  H04L25/0298 ,  H04L25/4917

Abstract: System, methods and apparatus are described that facilitate transmission of data, particularly between two devices within an electronic apparatus. Information is transmitted in N-phase polarity encoded symbols. Data is encoded in multi-bit symbols, and the multi-bit symbols are transmitted on a plurality of connectors. The multi-bit symbols may be transmitted by mapping the symbols to a sequence of states of the plurality of connectors, and driving the connectors in accordance with the sequence of states. The timing of the sequence of states is determinable at a receiver at each transition between sequential states. The state of each connector may be defined by polarity and direction of rotation of a multi-phase signal transmitted on the each connector.

公开(公告)号：US20170116150A1

公开(公告)日：2017-04-27

申请号：US15299358

申请日：2016-10-20

Applicant: QUALCOMM Incorporated

Inventor： George Alan Wiley

IPC: G06F13/42 ,  G06F5/06 ,  G06F1/32

CPC classification number: G06F13/4282 ,  G06F5/065 ,  G06F13/42 ,  G06F13/4295 ,  G06F2205/067 ,  H04L12/40032 ,  H04L12/40039 ,  H04L12/40136 ,  Y02D10/14 ,  Y02D10/151 ,  Y02D50/10 ,  Y02D50/20

Abstract: System, methods and apparatus are described that support multimode operation of a data communication interface. A method includes receiving a first code word transmitted while a physical interface of the device is configured to operate in a low-power mode of operation, reconfiguring the physical interface in response to the first code word such that it operates in a high-speed mode, transmitting data while the physical interface operates in the high-speed mode of operation, receiving a second code word transmitted while the physical interface operated in the high-speed mode of operation, and reconfiguring the physical interface in response to the second code word, such that it operates in the low-power mode of operation. The first code word, the second code word, and the data may be transmitted in signals bound by a common voltage range. In one example, the voltage range is less than 500 millivolts.

公开(公告)号：US20170091141A1

公开(公告)日：2017-03-30

申请号：US15373645

申请日：2016-12-09

Applicant: QUALCOMM Incorporated

Inventor： Chulkyu Lee ,  George Alan Wiley

IPC: G06F13/42 ,  G06F13/40

CPC classification number: G06F13/36 ,  G06F13/4063 ,  G06F13/4068 ,  G06F13/4278 ,  G06F13/4282 ,  H04L7/0033 ,  H04L25/14 ,  H04L25/4917 ,  H04L25/4919 ,  Y02D10/14 ,  Y02D10/151

Abstract: System, methods and apparatus are described that facilitate transmission of data, particularly between two devices within an electronic apparatus. Information is transmitted in N-phase polarity encoded symbols. Drivers may be adapted or configured to align state transitions on two or more connectors in order to minimize a transition period between consecutive symbols. The drivers may include circuits that advance or delay certain transitions. The drivers may include pre-emphasis circuits that operate to drive the state of a connector for a portion of the transition period, even when the connector is transitioned to an undriven state.

公开(公告)号：US09553635B1

公开(公告)日：2017-01-24

申请号：US14808272

申请日：2015-07-24

Applicant: QUALCOMM Incorporated

Inventor： Dhaval Sejpal ,  Chulkyu Lee ,  George Alan Wiley

IPC: H04L25/34 ,  H04B3/54 ,  H04B3/462

CPC classification number: H04B3/54 ,  H04B3/462 ,  H04L7/0087 ,  H04L7/033 ,  H04L25/0286 ,  H04L25/14 ,  H04L25/4917

Abstract: A method, an apparatus, and a computer program product for data communication over a multi-wire, multi-phase interface are provided. The method may include providing a sequence of symbols to be transmitted on a 3-wire interface, each symbol in the sequence of symbols defining one of three voltage states for each wire of the 3-wire interface, driving all wires of the 3-wire interface to a common voltage state during a transition from a first transmitted symbol to a second transmitted symbol, driving each wire of the 3-wire interface in accordance with the second transmitted symbol after a predetermined delay. Each wire may be in a different voltage state from the other wires of the 3-wire interface during transmission of the each symbol. The common voltage state may lie between two of the three voltage states.

Abstract translation: 提供了一种用于通过多线，多相接口进行数据通信的方法，装置和计算机程序产品。 该方法可以包括提供要在3线接口上发送的符号序列，符号序列中的每个符号定义3线接口的每根线的三种电压状态之一，驱动3线的所有线 在从第一传输符号到第二传输符号的转变期间接合到公共电压状态，在预定延迟之后根据第二传输符号驱动3线接口的每条线。 在每个符号的传输期间，每根导线可能处于与3线接口的其它线不同的电压状态。 公共电压状态可以位于三个电压状态中的两个之间。

公开(公告)号：US20160259702A1

公开(公告)日：2016-09-08

申请号：US15060221

申请日：2016-03-03

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee Mishra ,  Richard Dominic Wietfeldt ,  James Lionel Panian ,  George Alan Wiley ,  Amit Gil

IPC: G06F11/30 ,  G06F15/17 ,  G06F1/32 ,  G06F9/44 ,  G06F15/78

CPC classification number: G06F11/3051 ,  G06F1/3209 ,  G06F1/3278 ,  G06F9/4418 ,  G06F11/3041 ,  G06F15/17 ,  G06F15/7807 ,  Y02D10/157

Abstract: System, methods, and apparatuses are described that facilitate a first device to transmit/retransmit a message to a second device. The first device transmits a first message to the second device. The first device then receives a second message and identifies a hit of the second message indicating an originator of the second message. If the bit indicates the first device as the originator of the second message, then the second message is an echo of the first message, Reception of the echo indicates that the second device is in a sleep state. Accordingly, the first device waits for the second device to wake and retransmits the first message to the second device to ensure that any packets lost during the original transmission of the first message (when the second device was asleep) are now retransmitted while the second device is known to be awake.

Abstract translation: 描述了便于第一设备向第二设备发送/重发消息的系统，方法和设备。 第一设备向第二设备发送第一消息。 然后，第一设备接收第二消息并识别指示第二消息的发起者的第二消息的命中。 如果该比特指示第一个设备作为第二个消息的发起者，则第二个消息是第一个消息的回应，回应的接收表明第二个设备处于睡眠状态。 因此，第一设备等待第二设备唤醒并将第一消息重新发送到第二设备，以确保在第一消息的原始传输期间（当第二设备睡着时）丢失的任何分组现在在第二设备 已知醒来。