General Motors Patent Grants

Re-activating a first access point name using a second access point name

Granted: October 17, 2017
Patent Number: 9794768
A communication system and methods of using the communication system to re-activate a previously used access point name (APN) in order to re-establish connectivity between an application service provider (ASP) and a telematics unit in a vehicle. The steps of the method include: receiving content data at the vehicle via the ASP using a first access point name (APN); experiencing a loss of connectivity between the vehicle and the ASP, wherein the loss of connectivity includes de-activation…

Automated enrollment and activation of telematics equipped vehicles

Granted: September 19, 2017
Patent Number: 9767697
A method for automated enrollment and activation of a mobile telematics system comprising receiving a customer data record of a customer at a communication services database, determining a command signal based on the customer data record, sending the command signal to a telematics unit of a vehicle, enrolling the customer in a telematics-unit access system based on the command signal and activating the telematics unit of the telematics-unit access system based on the command signal.

Methods and systems for facilitating communications between vehicles and service providers

Granted: September 19, 2017
Patent Number: 9768956
Methods and systems for facilitating communications between a vehicle and a service provider are provided. A first address of a vehicle communication device and a second address of a service provider communication device are obtained at a remote location that is remote to both the vehicle and the service provider. A set of keys, including a first key and a second key, is generated at the remote server. The first key is for use by the vehicle in establishing communications with the…

Managing remote provisioning at a wireless device

Granted: September 19, 2017
Patent Number: 9769647
A system and method of provisioning a wireless device that uses cellular communication protocols. The method carried out by the system includes: establishing a wireless communications session with the wireless device at a remote facility; transmitting provisioning information from the remote facility to the wireless device via the wireless communications session; and including a computer readable instruction with the provisioning information commanding the wireless device to contact the…

Estimation of precise road grade using time-differenced satellite navigation system signals

Granted: September 12, 2017
Patent Number: 9759815
Implementations described herein contemplate measuring the carrier phase (CP) of carrier signals transmitted by constituent satellites of a Global Navigation Satellite System (GNSS) to provide highly accurate calculations of a gradient of a road segment between different points at which the vehicle received carrier signals (from which CP measurements were made). The methods described herein are able to calculate the road grade with only an approximate estimate of the absolute altitude of…

Connection key distribution

Granted: September 12, 2017
Patent Number: 9762559
A system and method for securely providing a mobile device with a cryptographic key in a vehicle. The method includes generating a cryptographic key pair that includes a first and second cryptographic keys. One of the keys is used to create a scannable image which is then incorporated into a label that is displayed in the vehicle, either as a physical label mounted in the vehicle or via a display screen within the vehicle. The label containing the scannable image can then be read by a…

Method of establishing a mobile-terminated packet data connection

Granted: September 5, 2017
Patent Number: 9756669
A method of establishing a packet data connection includes accessing a Domain Name Server (DNS) to obtain an Internet Protocol (IP) address of a vehicle telematics unit; initiating a mobile-terminated packet data connection with the vehicle telematics unit using the IP address of the vehicle telematics unit; and establishing the mobile-terminated packet data connection when the vehicle telematics unit determines that a hostname representing an IP address of a third party initiating the…

Interface device for providing vehicle services using a vehicle and a mobile communications device

Granted: August 15, 2017
Patent Number: 9736669
A method and system for providing vehicle services using a vehicle and a mobile communications device includes receiving at a vehicle a wireless communication sent from an interface device physically attached to the mobile communications device; linking the interface device with one or more vehicle modules; and communicating between one or more vehicle modules and the mobile communications device via the interface device.

Network-coordinated DRx transmission reduction for a network access device of a telematics-equipped vehicle

Granted: July 25, 2017
Patent Number: 9716758
A system for reduction of discontinuous-receive (DRx) transmissions for a network access device (NAD) of a telematics unit of a telematics-equipped vehicle includes: the telematics unit, configured to determine whether vehicle ignition of the telematics-equipped vehicle is on or off, the telematics unit further comprising the NAD, the NAD being configured to communicate with a network entity to perform a periodic updating procedure; the network entity, configured to communicate with the…

Status-assisted communications with a vehicle

Granted: July 25, 2017
Patent Number: 9716927
A method of sending data from a central facility to a vehicle includes transmitting a vehicle identifier to a status server from a central facility located apart from the status server; obtaining at the central facility one or more vehicle status variables corresponding to the transmitted identity of the vehicle from the status server; and initiating a direct transmission of packet data from the central facility to the vehicle based on the content of the obtained vehicle status…

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…