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G-Book is a telematics subscription service provided by Toyota Motor Corporation in Japan〔(【引用サイトリンク】title=Toyota G-Book - Gizmo Highway Auto Guide )〕〔http://www.phoneyworld.com/newspage.aspx?n=1384〕〔(【引用サイトリンク】title=Toyota Announces New G-BOOK Telematics )〕〔http://www2.toyota.co.jp/en/news/02/0828.html Description of all services offered as of 28 August 2002〕 for its Toyota- and Lexus-branded vehicles. G-Book allows users to link with cellphones (such as the Toshiba T003 cellphone).〔(【引用サイトリンク】language=Japanese )〕 personal digital assistants (PDA)'s, personal computers (PC) and G-Book equipped cars across Japan.〔(【引用サイトリンク】title=TOYOTA: News Releases )〕 It is based on the former GAZOO infrastructure (renamed Toyota Media Service Corporation) of Toyota's membership-based information service and membership system, and it provides interactive information services via vehicle installed touch-screen wireless communication terminals. The subscription service replaces the need to periodically update in-car navigation systems that use CD, or DVD installed maps that must be updated with the latest information. The maps are sent by internet connections established through the drivers cellphone with a data download plan associated with the cellphone. A G-Book application can be installed on select mobile devices, thereby providing the technology without having to purchase a vehicle installed with the technology.〔(【引用サイトリンク】title=G-BOOK )〕 A proprietary service with additional functions for the Lexus division, G-Link, debuted on Japan-market Lexus models starting in model year 2006. Toyota made available G-Book devices as optional equipment in all Japanese domestic market Toyota, Daihatsu and Lexus vehicles starting with model year 2007. An article posted by "Response.jp" stated in an article on July 15, 2009 that Toyota was introducing G-Book in a specially identified Toyota Camry to be sold in Beijing, China.〔http://response.jp/issue/2009/0715/article127374_1.html Camry "G-Book" sold in China (Japanese)〕 As of November 2009 the G-Book-equipped Camry is available in Shanghai as well. G-Book was also introduced on Lexus models in China in 2009.〔http://www.lexus.com.cn/about_lexus/latest_news/release_20090908.asp〕 ==Technology== There are three versions of G-Book being offered; G-Book mX (and G-Book mX Pro), G-Book Alpha (and G-Book Alpha Pro) and G-Book. Some of the services G-Book offers are a Safety and Security service, which aids in requesting a tow truck and vehicle location service, Live Navigation where an operator gives turn-by-turn directions, Information Service which provides news, weather forecasts and stock market information, Communication Service that offers the ability to send and receive web based e-mail, and post and read on message boards, E-commerce Service, that allows merchandise to be purchased from the GAZOO Shopping Mall, and a live operator is available through OSS (Operator Support Service) for various issues. One of the features offered exclusively on G-Book mX is Probe Communication Traffic Information. According to the press release from Toyota dated April 10, 2007, "This unique Toyota traffic information service gathers driving data – such as speed and position – from vehicles equipped with G-Book mX to provide drivers with alternate routes for avoiding traffic congestion. Because it makes use of the on-board DCM (data communications module), the information gathering capability of this service is superior to similar systems, which rely solely on cell phones, and efficiently stores information about traffic congestion in real time at the G-Book Center. In this way the Probe Communication Traffic Information service supplements Vehicle Information and Communication System (VICS) information with updates on traffic congestion, providing drivers with highly accurate predictions about the current traffic situation and suggestions for the best alternate routes to take."〔 This feature is being marketed as an ability to drive eco-friendly, by helping to avoid pollution created by cars idling in traffic and allowing the driver to reach their destination sooner, and affording the opportunity to turn the car off, limiting emissions being added to the atmosphere. The wireless communications for Japan-market cars are handled by the DCM and transmits and receives information on the wireless network owned by Japanese telecommunications provider KDDI Corporation headquartered in Okinawa. The cellular platform used is the CDMA2000 1x (CDMA 1X) method, and it is possible to receive up to 144kbit/s data. The same DCM is used for China-market models, thus the network provider for China-market G-Book services is China Telecom. Map updates and music downloads are not available for China-market G-Book-enabled cars, and traffic information is only available in Shanghai, Beijing, Guangzhou, and Shenzhen. G-Book Alpha Pro, mX Pro DCM-only, and CDMA2000 1xEV-DO (CDMA 1X WIN) can send up to 2.4Mbit/s of data, and the DCM supports hands-free calls. The DCM model is also equipped with its own GPS receiver and features, to track a stolen vehicle, and it also has an emergency notification ability to transmit the location of airbag deployment. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「G-Book」の詳細全文を読む スポンサード リンク
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