摘要:
A method for recording information that is transmitted over a radio frequency, especially traffic information, in which, in a monitoring state, the receiving device is supplied with power in a clocked manner. While switched on, the receiving device is tuned to a preestablished radio frequency and the received radio frequency is monitored for the presence of an identifier designating information. In the event an information identifier is detected, the receiver is supplied with power for the duration of the identifier and the information is recorded. In response to switching on the monitoring state, the preestablished radio frequency is determined as the frequency to which a radio frequency refers that transmits no information and that was set before the monitoring state was switched on.
摘要:
Data counters and perform a counting operation which is synchronized with the respective timing of receiving multiplex data from a VICS data broadcasting station and a D-GPS data broadcasting station. While receiving the multiplex data from the VICS data broadcasting station, based on an output C2 of the data counter and a BIC detection output BP, block synchronization is detected. When the broadcasting station is switched from the VICS data broadcasting station to the D-GPS data broadcasting station, an output C2 of the data counter is selected in response to a control signal CONT and block synchronization is detected based on an output C2 and an output BP. Further, an output C1 is always inputted to the block counter. Thus, even while receiving the multiplex data from the D-GPS data broadcasting station, frame synchronization of the multiplex data of the VICS data broadcasting station is detected without causing miscounting.
摘要:
A web based vehicle information messaging system allows a user to receive user defined information pertaining to the vehicle. The system implements a network of transmitters, receivers, and computers to post a web site displaying information pertaining to the vehicle, that can be viewed and interfaced with by a user. The system allows the user to predetermine the type of vehicle information the users desires and then sends messages to the user pertaining to the requested information according to timing triggers selected by the user.
摘要:
A vehicle navigation system includes a message transmitter/receiver capable of holding a dialog with a central database under the control of a processor to request and obtain information signals. Messages are received in the form of a cession of reference numbers, and the processor searches its local database for intelligible data corresponding to each reference number. Since the local database contains a limited capacity, for certain reference numbers the corresponding intelligible data will not be in the memory. The processor then begins a dialog by means of the transmitter/receiver, between itself and a central database, so as to obtain the lacking data that corresponds to a received reference number.
摘要:
A method is proposed for transmitting traffic announcements via Digital Audio Broadcasting (DAB), making use of the TMC code, where it is possible to have a simple allocation of the audio signals to the TMC data. In this context, the allocation is predetermined by the data frame of the digital transmitter and by the corresponding data protocol.
摘要:
A telematic device in which a car radio with an RDS module, a wireless telephone, and a positioning and navigation system are provided in one housing. The housing is designed so that it can be installed in a standard bay in the instrument panel of a motor vehicle. The telematic device can be used to receive general information via the car radio as well as specific information via the GSM module. In addition, data relating to, for example, the vehicle position, a desired destination, or an emergency call can be sent to the central station. The central station calculates one or more routes and transmits them back to the telematic device. In the event of an accident or a vehicle breakdown, an emergency call is transmitted and assistance obtained. Additional telematic services provided include an expanded anti-theft system for the motor vehicle, hotel reservations, etc.
摘要:
When an RDS or RBDS radio is used to listen to prerecorded media, the tuner monitors an RDS station in the background to determine when a traffic announcement is in progress. A search for selecting an appropriate station for background monitoring is provided which selects a station which is most likely to be in accordance with the individual preferences of the driver. The search method can also be used to find traffic capable stations, weather stations, emergency alert information, and news broadcasts.
摘要:
A storage medium (202) carries data structures (220-222) with attribute values (224-232) for a plurality of geographical locations. On the basis of a given code the storage medium is accessed by a system in order to read the attribute values of the data structure (222) corresponding to the given code. The storage medium in accordance with the invention stores a structure description (236) which specifies the layout of the data structure (222) in attribute values. The system consults this structure description and, as a result, knows the layout of the relevant data structure. By storing the structure description on the storage medium different data structures with an individual more suitable layout can be stored. Moreover, a subsequent version of the storage medium can store an adaptation of the data structure layout while it can still be read by the original system.
摘要:
The invention relates to a broadcast receiver, comprising a control circuit (7) for applying encoded messages, derived from a broadcast signal, to at least one storage device (12, 28), for receiving control data, derived from the encoded messages, from at least one storage device (12, 28), and for forming the messages from the control data in a form suitable for a display device (13) and/or a speech synthesizer circuit (14). In order to reduce the data file, given control data is stored under a respective escape code in at least one storage device (12, 28). The control data contains, for example phonetic notations of different languages. After reception of control data containing at least one escape code, the control circuit (7) applies said escape codes to a storage device (12, 28) for further processing of the control data stored under the escape code.
摘要:
In a radio signal receiver for motor vehicles with a radio receiver with an RDS decoder for digital signals, convertible via a table into traffic information, the signals can be forwarded from the decoder via a data link to a navigation system provided with a route data storage which generates the traffic information from the signals.