摘要:
A control command, which has a command header sequence and a sequence of n parameters, is generated in a data source of a local network. The control command has a variable length defined by the data source. The control command is passed to the ring data line of the local network and is forwarded to a data sink. This data sink contains a control unit, a picture output unit, an interface and a memory, in which video data are stored. The video data can be read out and displayed on the picture output unit. The control command has n parameters of which the first m parameters are interpreted by the control unit. The number m is determined by the properties of the data sink and is independent of the properties of the data source. Using the m interpreted parameters, specific video data are read from the memory and are reproduced. The invention relates to a local network having a plurality of subscribers, which are connected to one another through the use of an optical data line for transmitting audio, video data and/or control data. The subscribers, together with the optical data line, form a ring network.
摘要:
A vehicle sound system provides an audio signal to a speaker system. The vehicle sound system comprises a first input unit that receives a first priority value indicative of a first scope of authority that the first input unit has been assigned over the vehicle sound system. A second input unit receives a second priority value indicative of a second scope of authority the second input unit has been assigned over the vehicle sound system. A plurality of sound system generating components are capable of communicating with the first and second input units over a system bus and being selectively controlled by the first and second input units via the system bus. The first input unit comprises an input interface that allows a user to specify the first priority value.
摘要:
A vehicle sound system provides an audio signal to a speaker system. The vehicle sound system comprises a first input unit that receives a first priority value indicative of a first scope of authority that the first input unit has been assigned over the vehicle sound system. A second input unit receives a second priority value indicative of a second scope of authority the second input unit has been assigned over the vehicle sound system. A plurality of sound system generating components are capable of communicating with the first and second input units over a system bus and being selectively controlled by the first and second input units via the system bus. The first input unit comprises an input interface that allows a user to specify the first priority value.
摘要:
The invention relates to a sound system for a motor vehicle and to a process for specifying the functional scope of such. The sound system (1) for a motor vehicle comprises a control unit (2), and several input units (3, 3a) for operating the system (1), as well as display units (4) and several units (5, 11) to generate the source data in the form of sound or video data. The sound data are amplified in an amplifier unit (6), and are conducted to several loudspeakers (7). The units are linked to one another via a bus (8) with a ring topology. Both source data and control data are transmitted over the bus. The functional scope of the individual input units (3, 3a) is specified by means of a priority value of the input units (3, 3a). This priority value is stored in the memory (12) of each input unit (3, 3a). A control command containing this priority value causes the other units of the system (1) to form a priority-dependent functional scope, which represents a subset of the entire functional scope of this unit, and to transmit this back to the respective input unit (3, 3a). The latter then generates its functional scope from the priority-dependent functional scopes that have been conducted to it. This functional scope then comprises all functionalities which can be invoked through this input unit (3, 3a). Since the various input units (3, 3a) have different priority values, they also have different functional scopes. As a result, collisions in the control of the system are essentially eliminated.
摘要:
A method for data transmission via several data channels in a network linking several units to one another, where the units can function as data sources, data sinks or transceivers, includes the steps of arbitrarily assigning a first data channel to a first predetermined one or more connection segments; arbitrarily assigning the first channel to a second predetermined one or more connection segments other than the first predetermined one or more connection segments; and simultaneously transmitting data between two units across the first predetermined one or more connection segments via the first data channel, and between two or more other units across the second predetermined one or more connection segments via the first data channel. The data are transmitted in a first direction over the first predetermined at least one connection segment, and the data are transmitted in a second direction over the second predetermined at least one connection segment, where the first ands second directions are the same.
摘要:
A method for data transmission via several data channels in a network linking several units to one another, where the units can function as data sources, data sinks or transceivers, includes the steps of arbitrarily assigning a first data channel to a first predetermined one or more connection segments; arbitrarily assigning the first channel to a second predetermined one or more connection segments other than the first predetermined one or more connection segments; and simultaneously transmitting data between two units across the first predetermined one or more connection segments via the first data channel, and between two or more other units across the second predetermined one or more connection segments via the first data channel. The data are transmitted in a first direction over the first predetermined at least one connection segment, and the data are transmitted in a second direction over the second predetermined at least one connection segment, where the first ands second directions are the same.
摘要:
A method for data transmission via several data channels in a network linking several units to one another, where the units can function as data sources, data sinks or transceivers, includes the steps of arbitrarily assigning a first data channel to a first predetermined one or more connection segments; arbitrarily assigning the first channel to a second predetermined one or more connection segments other than the first predetermined one or more connection segments; and simultaneously transmitting data between two units across the first predetermined one or more connection segments via the first data channel, and between two or more other units across the second predetermined one or more connection segments via the first data channel. The data are transmitted in a first direction over the first predetermined at least one connection segment, and the data are transmitted in a second direction over the second predetermined at least one connection segment, where the first ands second directions are the same.
摘要:
In a ring-shaped MOST network installed in a motor vehicle, several units are linked to one another by several linkage sections. They function as data source, data sink, or transceiver. At least some of the units have two or more transceiver modules. To relieve the processors of such units with more than one transceiver module, only one network controller is present in such a unit for all its transceiver modules.
摘要:
A coating based on diamond-like is formed from a plurality of films of diamond-like carbon formed alternatingly over one another and in this respect a film in which no portion or only a much lower portion of doped fluorine is contained. A film in which fluorine or at least fluorine with a higher portion than the film arranged thereunder or thereabove are formed alternatingly over one another. The coating could be manufactured by using a target of pure carbon. Films are deposited on a surface of a substrate by means of a PVD process, with the portion of fluorine contained in doped form. Films are formed alternately being varied by varying a supplied volume flow of a fluorine/carbon compound or sulfur/fluorine compound as a precursor.