General Motors Patent Grants

Text-to-speech processing based on network quality

Granted: July 11, 2017
Patent Number: 9704477
A method is disclosed that provides text-to-speech (TTS) functionality to a telematics unit of a telematics-equipped vehicle. The method includes: receiving text content to be played back by an audio system of the telematics-equipped vehicle; determining, by a processor, a TTS rendering process to be used for the text content from a plurality of TTS rendering processes, wherein the plurality of TTS rendering processes include local TTS rendering using a local TTS engine at the…

Remote telematics unit band control with dynamic memory

Granted: July 11, 2017
Patent Number: 9705992
A system and method of remotely changing use of a cellular protocol at a vehicle includes: storing, in a network access device (NAD) at the vehicle, identities of one or more cellular bands that provide cellular service according to an up-to-date cellular protocol; wirelessly receiving at the vehicle a computer-readable instruction that deactivates the up-to-date cellular protocol; and in response to the computer-readable instruction, the vehicle: obtains the identities of the cellular…

Secure SMS messaging

Granted: July 11, 2017
Patent Number: 9706372
A mobile vehicle communications system and a method of sending one or more secure short message service (SMS) messages using that system. The method includes the steps of: (a) determining at a sender a data quantity associated with zero or more proprietary data parcels (PDPs) to send within one or more SMS messages; (b) configuring an encrypted payload of each of the one or more configured SMS messages to carry the total number of PDPs, wherein when the size of the payload would result…

Method of detecting the opening of closed roads

Granted: July 4, 2017
Patent Number: 9696169
The described principles provide a method and system for identifying a potentially closed road based on reroute requests, and of accommodating the potential road closure while continuing to test the road status periodically via routing decisions and rerouting requests. While the optimal route assumes that the potentially closed road is open, a replacement route is defined assuming that the potentially closed road is closed. A fraction of users are sent along the optimal route, and if a…

Provisioning automotive SIM cards without removal from vehicle

Granted: July 4, 2017
Patent Number: 9699587
A system and method are provided for re-provisioning a telematics unit of a telematics-equipped vehicle for wireless services. The re-provisioning process includes: connecting a computing device to an on-board diagnostics interface of the telematics-equipped vehicle; accessing a subscriber identification card of the telematics unit via the on-board diagnostics interface; requesting subscription information from a subscriber credentials server via a network connection; receiving the…

Method of communicating vehicle messages using short message system messages

Granted: May 23, 2017
Patent Number: 9659499
A system and method for communicating reportable vehicle events via SMS messages. The method carried out by the system includes storing a user-provided contact at a vehicle, monitoring a plurality of vehicle conditions, detecting that one of the vehicle conditions has become a reportable vehicle condition, and sending a short-message service (SMS) message to the stored contact based on the determination, wherein the SMS message includes information associated with the reportable vehicle…

Method of detecting a vehicle tire theft

Granted: May 16, 2017
Patent Number: 9649895
A system and method for detecting a missing vehicle tire and notifying a user of the vehicle about a potential vehicle tire theft. The method carried out by the system involves detecting that a tire is missing from a vehicle using a vehicle tire pressure monitoring (TPM) system and thereafter providing a notification of the missing tire via a wireless communication sent from a telematics unit on the vehicle. The wireless communication can be sent automatically by the telematics unit in…

Parking garage environment detection and EHPE determination for vehicular navigation

Granted: May 9, 2017
Patent Number: 9644970
Implementations of the present invention contemplate obtaining a more accurate estimated horizontal position error (EHPE) under conditions in which the telematics unit of a vehicle cannot receive GNSS signals. In particular, the invention contemplates determining that a vehicle is entering a parking garage and obtaining a more accurate estimated horizontal position error (EHPE) of the vehicle in the parking garage when GNSS signals are unavailable.

Fast estimation of UTC time in a mobile device using GNSS

Granted: May 9, 2017
Patent Number: 9645247
A method is described for estimating the coordinated universal time (UTC). The method involves receiving, by a satellite navigation receiver, signals broadcast by a global navigation satellite service (GNSS) satellite. The signals encode a first time of week (TOW) value. The method also involves estimating a first week number (WN) value and a first relationship between the UCT and a reference time of an onboard clock of the GNSS satellite (OFFSET) from time parameter values stored at a…

Automated, targeted diagnostic probe using a vehicle telematics unit

Granted: May 9, 2017
Patent Number: 9645971
A system and method for providing diagnostic assistance to a driver of a vehicle when calling a call center following a diagnostic warning being displayed on the vehicle instrument panel. Upon establishing the call, indicator data representative of the warning is automatically sent to the call center where it is used to select one or more diagnostic tests targeted to particular vehicle systems associated with the warning. The test is carried out at the vehicle and the resulting…

Configuring a vehicle to receive content data

Granted: April 25, 2017
Patent Number: 9634892
A communication system and methods of using the communication system is described. One method includes configuring a telematics unit in a vehicle with at least one access point name (APN). The steps of the method include: configuring the telematics unit with a default APN prior to a legal transfer of possession of the vehicle; and thereafter, activating the telematics unit for the provision of content data in connection with the legal transfer of possession of the vehicle, wherein the…

Providing TTY services in a vehicle

Granted: April 4, 2017
Patent Number: 9614913
A method and a system for providing TTY services in a vehicle. The method may be carried out by the following steps: (a) providing a vehicle telematics unit configured to receive calls according to a first telecommunication standard and a second telecommunication standard, wherein the second telecommunication standard is newer than the first; (b) receiving an indication that a vehicle user desires to use a TTY device at the vehicle; (c) in response to step (b), switching to the first…

Control of wireless communication channels for a vehicle telematics unit

Granted: March 28, 2017
Patent Number: 9607449
A vehicle telematics system and a method for controlling access to a plurality of wireless communication channels between the telematics system and on-board vehicle systems and mobile communications devices is provided. The telematics system includes one network interface connected to a telecommunications network and another network interface connected to one or more on-board vehicle systems and mobile communications devices to permit the on-board vehicle systems and communications…

Dynamic DHCP for Wi-Fi connectivity in a vehicle

Granted: February 28, 2017
Patent Number: 9584470
A system and a method using the system for wireless communication using a vehicle telematics unit, including the steps of: prior to a vehicle telematics unit establishing a network connection, assigning a temporary internet protocol (IP) address having a short-term lease duration to a mobile device to permit communication between the telematics unit and the mobile device; and if the network connection is not established prior to the expiration of the short-term lease duration, renewing…

Providing cellular data to a vehicle over different data channels

Granted: February 21, 2017
Patent Number: 9576474
A method and a system for providing vehicle services to at least one communication device located at a vehicle via a vehicle telematics unit. The method carried out by the system includes the steps of: receiving a request at the vehicle telematics unit for first vehicle services from a first communication device located at a vehicle; associating a first identifier with the first communication device; and providing the first vehicle services to the first communication device, wherein the…

Cellular handoff by wireless devices

Granted: February 21, 2017
Patent Number: 9578580
A system and method of controlling a wireless device communicating with a cellular communications system includes: establishing a cellular connection between the wireless device and a first cell tower; detecting, at the wireless device, a reference signal received power (RSRP) measurement of a signal broadcast by the first cell tower; increasing an RSRP threshold used by the wireless device by adding an offset value to the RSRP threshold; determining whether the detected RSRP measurement…

Sender-responsive text-to-speech processing

Granted: February 14, 2017
Patent Number: 9570066
A method of speech synthesis including receiving a text input sent by a sender, processing the text input responsive to at least one distinguishing characteristic of the sender to produce synthesized speech that is representative of a voice of the sender, and communicating the synthesized speech to a recipient user of the system.

Resolving IP addresses in a wireless environment

Granted: February 14, 2017
Patent Number: 9572022
A method of anonymously resolving Internet Protocol (IP) addresses using a distributed network includes defining a virtual geographic area that comprises a micro dynamic domain name server (MDDNS); wirelessly receiving at a central facility a geographic attribute of a telematics unit; determining at the central facility that the telematics unit is within the virtual geographic area using the received geographic attribute; and transmitting an IP address of a host telematics unit in the…

Speech adaptation in speech synthesis

Granted: February 7, 2017
Patent Number: 9564120
A method of and system for speech synthesis. First and second text inputs are received in a text-to-speech system, and processed into respective first and second speech outputs corresponding to stored speech respectively from first and second speakers using a processor of the system. The second speech output of the second speaker is adapted to sound like the first speech output of the first speaker.

Providing vehicle owner's manual information using object recognition in a mobile device

Granted: January 24, 2017
Patent Number: 9552519
There is provided a communication system that includes a vehicle and a mobile device, and a method uses that system to provide vehicle owner's manual information. The method includes the steps of: receiving a digital image of a portion of a vehicle; identifying an object of the vehicle in the digital image; associating the object with at least one reference object image stored in an object library comprising a plurality of reference object images; displaying owner's manual information…