Akihisa Yokoyama

US Patent:

20130121434, May 16, 2013

Filed:

Nov 11, 2011

Appl. No.:

13/295005

Inventors:

Akihisa Yokoyama - Cupertino CA, US

Assignee:

TOYOTA INFOTECHNOLOGY CENTER CO., LTD. - Tokyo
TOYOTA JIDOSHA KABUSHIKI KAISHA - Aichi-ken

International Classification:

H04B 15/00
H04L 25/49

US Classification:

375285, 375296

Abstract:

A system and method for realizing distributed interference alignment is disclosed. The system comprises a retrieving module, a determination module and a precoding module. The retrieving module retrieves source data. The determination module generates data describing one or more requirements for one or more associated Interference Alignment (IA) groups. The precoding module calculates a precoding vector based at least in part on the data describing the one or more requirements for the one or more associated IA groups. The precoding module is communicatively coupled to the retrieving module to receive the source data. The precoding module generates a transmission signal based at least in part on the precoding vector and the source data.

US Patent:

20130257387, Oct 3, 2013

Filed:

Mar 30, 2012

Appl. No.:

13/436561

Inventors:

Akihisa Yokoyama - Cupertino CA, US
Kunihiko Kumita - Seto-shi, JP

Assignee:

Toyota Info Technology Center Co., Ltd. - Tokyo
Toyota Jidosha Kabushiki Kaisha - Toyota-shi

International Classification:

H02J 7/00

US Classification:

320137

Abstract:

A system and method for controlling charging for a vehicle is disclosed. The system comprises a statistical analyzer, an estimation module and a determination module. The statistical analyzer analyzes a set of data describing utility rate information and one or more behaviors of the vehicle. The estimation module estimates one or more tendency parameters based at least in part on the analyzing. The determination module determines a charging setting based at least in part on the one or more tendency parameters. The charging setting comprises one or more of a target charging battery state of charge (SoC), a charging start time and a charging end time.

US Patent:

20150283912, Oct 8, 2015

Filed:

Apr 4, 2014

Appl. No.:

14/245760

Inventors:

- Toyota-shi, JP
Akihisa YOKOYAMA - Mountain View CA, US
Atsushi KAWAKUBO - Toyota-shi, JP

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA - Toyota-shi

International Classification:

B60L 11/18
H02J 7/00
G01R 31/36

Abstract:

The disclosure includes a system and method for providing charging services to mobile client devices. The system includes a processor and a memory storing instructions that, when executed, cause the system to: estimate a departure time for a mobile client device; determine a target state of charge at the departure time for a battery system in the mobile client device; determine one or more available charging periods and one or more demand response event periods; determine one or more amounts of power to be discharged from the battery system during the one or more demand response event periods; determine one or more charging time slots within the one or more available charging periods based on the target state of charge and the one or more amounts of power to be discharged; and charge the battery system using the one or more charging time slots.

US Patent:

20140325218, Oct 30, 2014

Filed:

Apr 26, 2013

Appl. No.:

13/871656

Inventors:

- Toyota-shi, JP
Akihisa Yokoyama - Cupertino CA, US
Atsushi Kawakubo - Toyota-shi, JP

Assignee:

Toyota Jidosha Kabushiki Kaisha - Toyota-shi

International Classification:

H04L 9/32

US Classification:

713168

Abstract:

The disclosure includes a system and method for charging a target object wirelessly. The system includes a processor and a memory storing instructions that when executed cause the system to: receive data describing a charging request from a target object; generate a challenge responsive to the charging request; send the challenge to the target object; receive a response from the target object; verify the response to determine that the response matches the challenge and a first set of secret data shared with a tagging device; determine that a location associated with the target object satisfies a safe charging range responsive to the verification of the response; and instruct a power transmitter associated with the target object to transmit power wirelessly to a power receiver associated with the target object responsive to the verification of the response and the determination that the location satisfies the safe charging range.

US Patent:

20140201381, Jul 17, 2014

Filed:

Jan 15, 2013

Appl. No.:

13/742280

Inventors:

TOYOTA JIDOSHA KABUSHIKI KAISHA - , US
Akihisa Yokoyama - Cupertino CA, US
Kazuma Sato - Sunnyvale CA, US
Kunihiko Kumita - Toyota-shi, JP

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA - Toyota-shi

International Classification:

H04L 29/08

US Classification:

709230

Abstract:

A system and method for managing smart grid communication is disclosed. The system includes a communication module, a discovery module, a translation module and a smart grid module. The communication module receives data initiating smart grid communication between a utility server and a communication node. The discovery module identifies a server protocol used by the utility server to communicate with the communication node. The discovery module identifies a node protocol used by the communication node to communicate with the utility server. The node protocol is incompatible with the server protocol. The translation module performs a protocol translation between the server protocol and the node protocol. The smart grid module handles the smart grid communication between the utility server and the communication node using the protocol translation.

US Patent:

20140112410, Apr 24, 2014

Filed:

Oct 23, 2012

Appl. No.:

13/658550

Inventors:

- Toyota-shi, JP
- Tokyo, JP
Akihisa Yokoyama - Cupertino CA, US

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA - Toyota-shi

International Classification:

H04B 15/00

US Classification:

375285

Abstract:

A system and method for realizing virtual interference alignment. The system comprises a retrieving module, a determination module and a precoding module. The retrieving module retrieves source data. The determination module receives shared data and transmission information. The shared data and transmission information are generated from a shared signal received from one or more participating communication systems associated with a first virtual transmitting group. The precoding module calculates a precoding vector describing one or more requirements of interference alignment based at least in part on the transmission information. The precoding module generates a first transmission signal based at least in part on the precoding vector, the source data and the shared data.