公开(公告)号：US10348358B1

公开(公告)日：2019-07-09

申请号：US15985289

申请日：2018-05-21

Applicant: Amazon Technologies, Inc.

Inventor： Sameet Ramakrishnan ,  Ravi Ichapurapu ,  Milos Jorgovanovic

IPC: H03F3/19 ,  H04B1/04 ,  H04B1/58

Abstract: This disclosure describes techniques for implementing and utilizing a transceiver in a communication device that has two separate radio-frequency (RF) power amplifiers that are optimized to transmit signals using separate communication standards. The power amplifiers may be designed to convert a lower-power RF signal into different higher-power signals according to different standard-mandated, output-power limits. In this way, a communication device may arbitrate between two transceiver chains that include respective power adapters in order to convert lower-power RF signals into different higher-power RF signals. The higher-power RF signals may have different output-power levels that are appropriate for the respective communication standards of the separate transceiver chains.

公开(公告)号：US12257496B1

公开(公告)日：2025-03-25

申请号：US17665911

申请日：2022-02-07

Applicant: Amazon Technologies, Inc.

Inventor： Ravi Ichapurapu ,  Sameet Ramakrishnan ,  Evan Fletcher Dougal ,  Brian Fisher ,  Junwu Luo ,  Sean Hajizadeh

IPC: A63F13/24 ,  A63F13/235 ,  G06F1/3287

Abstract: This disclosure describes, in part, techniques for conserving power on an electronic device. For instance, at given time intervals, the electronic device may be sending input data to a network device and receiving audio data from the network device. The electronic device may then use one or more techniques to determine when to switch from operating in a first mode, where the electronic device sends and/or receives the data, to operating in a second mode, where the electronic device ceases sending and/or receiving the data. For example, the electronic device may make the determination based on an amount of data stored in a buffer, whether the electronic device receives data, using data received from the network device, and/or the like. Based on the determination, the electronic device may switch to the second mode in order to conserve power.

公开(公告)号：US11621992B1

公开(公告)日：2023-04-04

申请号：US17132252

申请日：2020-12-23

Applicant: Amazon Technologies, Inc.

Inventor： Ravi Ichapurapu ,  Sameet Ramakrishnan ,  Shao-Cheng Wang ,  Qinghai Gao

IPC: H04L65/80 ,  G06F3/16 ,  H04W36/06

Abstract: This disclosure describes, in part, techniques for switching between communication channels in order to reduce latency of data transmissions. For instance, an electronic device may establish a first network connection with a network device and second network connection(s) with other electronic device(s). The electronic device may then send data received from the network device to the other electronic device(s). In some circumstances, the electronic device may establish a new network connection with the network device, such as on a different communication channel and/or use a different network band. In such circumstances, the electronic device may use one or more techniques to establish new network connections(s) with the other electronic device(s) in order to reduce the latency it takes to send the data received from the network device to the other electronic device(s).

公开(公告)号：US11161038B2

公开(公告)日：2021-11-02

申请号：US16202959

申请日：2018-11-28

Applicant: Amazon Technologies, Inc.

Inventor： Albert John Penello ,  Omar Sze Leung ,  Ravi Ichapurapu ,  Sameet Ramakrishnan ,  Marc Randall Whitten ,  Evan Fletcher Dougal ,  Michael Risley ,  Brian Fisher ,  Doyle Albert Martin

IPC: A63F13/355 ,  A63F13/335 ,  A63F13/45 ,  A63F13/44 ,  A63F13/358 ,  A63F13/42

Abstract: This disclosure describes, in part, techniques for controlling network applications. For instance, a remote system may send, over a network, data representing a state of an application to a display device, such as a television. The remote system may then receive, over the network, input data from a control device. The input data may represent one or more inputs received by the control device. Using the input data, the remote system may update the state of the application. The remote system may then send, to the display device, data representing the updated state of the application. In some instances, the remote system may further send, to the control device, audio data representing sound corresponding to the updated state of the application. The control device may synchronize outputting of the sound with the displaying the updated state of the application by the display device.

公开(公告)号：US11650625B1

公开(公告)日：2023-05-16

申请号：US16456418

申请日：2019-06-28

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Christopher Raymond Grajewski ,  Maya Shirish Sathaye ,  Joshua Watson ,  Matthew Wilkinson ,  Sameet Ramakrishnan

IPC: G10L25/78 ,  A61B5/24 ,  G06F1/16 ,  A61B5/00 ,  A61B5/11 ,  G06F13/42 ,  G10L25/93

CPC classification number: G06F1/163 ,  A61B5/1118 ,  A61B5/24 ,  A61B5/681 ,  A61B5/742 ,  G06F13/4282 ,  G10L25/78 ,  G10L25/93 ,  A61B2562/0219 ,  G10L2025/783

Abstract: A wearable device includes various sensors including a microphone, heart rate monitor, pressure sensor, and so forth. The user can set the device to acquire audio data of their speech. For example, if the pressure sensor indicates the device is being worn and the user's heart rate exceeds a threshold value, audio data may be acquired. Onboard the device the audio data is processed in various ways such as detecting whether the audio data includes speech, applying a beamforming algorithm, compressing and encrypting the audio, and so forth. The audio data may be processed onboard the device, sent to another device, or a combination thereof for processing to determine sentiment data indicative of perceived emotional content of the speech. A user interface provides the user with information based on the sensor data, sentiment data, and so forth.

公开(公告)号：US11304042B1

公开(公告)日：2022-04-12

申请号：US16654789

申请日：2019-10-16

Applicant: Amazon Technologies, Inc.

Inventor： Sameet Ramakrishnan ,  Ravi Ichapurapu

IPC: H04W4/80 ,  H04W72/04 ,  H04W4/48 ,  H04J3/06 ,  H04B1/713

Abstract: A multi-Bluetooth radio device is described. In an example, the device includes a first Bluetooth radio storing first instructions that, upon execution on the first Bluetooth radio, configure the first Bluetooth radio to perform first operations. The first operations include establishing a first communication link with a first device and receiving, over the first communication link, an audio packet from the first device. The device also includes a second Bluetooth radio storing second instructions that, upon execution on the second Bluetooth radio, configure the second Bluetooth radio to perform second operations. The second operations include establishing a second communication link with a second device and transmitting, over the second communication link, the audio packet to the second device.

公开(公告)号：US10985850B1

公开(公告)日：2021-04-20

申请号：US16218211

申请日：2018-12-12

Applicant: Amazon Technologies, Inc.

Inventor： Ravi Ichapurapu ,  Sameet Ramakrishnan ,  Morris Yuanhsiang Hsu

IPC: H04H20/18 ,  H04W56/00 ,  H04W4/80 ,  G06F3/16 ,  H04H20/22 ,  H04H20/71 ,  G10L15/22 ,  H04W92/22 ,  H04W84/12 ,  H04W80/02

Abstract: A system includes a media distribution device including a first network interface, a second network interface, and a first processor. The first processor configures the first network interface to use a first communication network, and broadcasts, using the first communication network, audio data. The system includes a media device including a third network interface, a fourth network interface, and a second processor. The second processor causes, using the third network interface, the media device to join the first communication network, receives, using the third network interface, a first portion of the audio data, processes the first portion of the audio data to generate first audio output, and transmits, using the fourth network interface, a control signal to the second network interface of the media distribution device. The control signal is configured to cause the first processor to modify an attribute of the audio data or stop broadcasting the audio data.

公开(公告)号：US11122519B1

公开(公告)日：2021-09-14

申请号：US16216445

申请日：2018-12-11

Applicant: Amazon Technologies, Inc.

Inventor： Ravi Ichapurapu ,  Morris Yuanhsiang Hsu ,  Sameet Ramakrishnan ,  Duck Ho Bae

IPC: H04W52/20 ,  H04W52/24 ,  H04W4/80 ,  H04W72/04 ,  H04W88/12 ,  H04W84/12

Abstract: An electronic device includes a first communication controller and a second communication controller. The first and second communication controller are configured to communicate wirelessly using respective antennas. The electronic device includes a processor that is configured to execute instructions for determining that the first controller is transmitting a first radio frequency signal, and setting a transmit power of the first controller to a first transmit power value. The processor is configured to execute instructions for determining a duty cycle of the first controller is greater than a packet loss threshold associated with the second controller, and setting the transmit power of the first controller to a second transmit power value. The second transmit power value is less than the first transmit power value.

公开(公告)号：US10725531B1

公开(公告)日：2020-07-28

申请号：US15980393

申请日：2018-05-15

Applicant: Amazon Technologies, Inc.

Inventor： Ravi Ichapurapu ,  Sameet Ramakrishnan

IPC: G06F1/3287 ,  H04N21/443 ,  G06F1/3206

Abstract: Systems, methods, and computer-readable media are disclosed for mitigating thermal increases in electronic devices. Example devices may include memory and at least one processor configured to access the memory and execute computer-executable instructions to determine that a temperature of the device satisfies a first threshold, send a notification to an access point communicatively coupled to the device indicating that the device will enter a sleep state for a length of time, and cause the device to enter the sleep state. Certain embodiments may be configured to cause the device to enter an awake state after the length of time, determine that the temperature satisfies a second threshold, and determine that a period of time has elapsed. Some embodiments may be configured to determine that a first bandwidth mode is active at the device, and cause a second bandwidth mode to be activated at the device.

公开(公告)号：US10608692B1

公开(公告)日：2020-03-31

申请号：US16196046

申请日：2018-11-20

Applicant: Amazon Technologies, Inc.

Inventor： Sameet Ramakrishnan ,  Ravi Ichapurapu ,  Ganesha Batta

IPC: H04B1/46 ,  H04B1/48 ,  H04W48/10 ,  H04B1/16

Abstract: Technologies for improving airtime for advertisement packet scanning are described. One apparatus includes a processing device, a memory device, a first radio, a second radio, and a single media access control (MAC) device coupled to the first radio and the second radio. The single MAC device assigns a single MAC address to the first radio and the second radio. The first radio receives first data and the second radio received second data and stores the second data in the memory device. The single MAC device processes the first data received from the radio and processes the second data retrieved from the memory device.