Patent application number | Description | Published |
20080240042 | High-Density Wireless Local Area Network - A data communication system includes an access point and a plurality of stations each for exchanging wireless data communication messages with the access point. At least some of the messages are in a format that includes at least one message header and a plurality of data units. Each of the data units includes a respective data unit header and a respective data frame. Each data unit header identifies a respective one of the stations as a recipient to receive the respective data frame of the data unit. | 10-02-2008 |
20080240063 | High-Density Wireless Local Area Network - A data communication system includes an access point and a plurality of stations each for exchanging wireless data communication messages with the access point. At least some of the messages are in a format that includes at least one message header and a plurality of data units. Each of the data units includes a respective data unit header and a respective data frame. Each data unit header identifies a respective one of the stations as a recipient to receive the respective data frame of the data unit. | 10-02-2008 |
20080240069 | High-Density Wireless Local Area Network - A data communication system includes an access point and a plurality of stations each for exchanging wireless data communication messages with the access point. At least some of the messages are in a format that includes at least one message header and a plurality of data units. Each of the data units includes a respective data unit header and a respective data frame. Each data unit header identifies a respective one of the stations as a recipient to receive the respective data frame of the data unit. | 10-02-2008 |
20080240071 | High-Density Wireless Local Area Network - A data communication system includes an access point and a plurality of stations each for exchanging wireless data communication messages with the access point. At least some of the messages are in a format that includes at least one message header and a plurality of data units. Each of the data units includes a respective data unit header and a respective data frame. Each data unit header identifies a respective one of the stations as a recipient to receive the respective data frame of the data unit. | 10-02-2008 |
20080274741 | High-Density Wireless Local Area Network - A data communication system includes an access point and a plurality of stations each for exchanging wireless data communication messages with the access point. At least some of the messages are in a format that includes at least one message header and a plurality of data units. Each of the data units includes a respective data unit header and a respective data frame. Each data unit header identifies a respective one of the stations as a recipient to receive the respective data frame of the data unit. | 11-06-2008 |
20090047927 | Method for Operating a Radio Network and Subscriber Device for Said Type of Network - There is described a method for operating a radio network for transferring data between several subscribers, in particular, between devices of process instrumentation in an automation system. At least one first subscriber communicates in a telegram the requests thereof relating to the frequency of the data transfer to other subscribers in a starting phase. During network optimization, a configuration device determines, in the radio network and according to the frequency of the requests of other subscribers, at least one communication partner to which a connection comprising the frequency of the data transfer, which is adapted to the other subscribers, is established. As the periods of data transfer are planned, it is possible to switch off the communication interface of the first subscriber in the pauses and also, to save energy. | 02-19-2009 |
20100309902 | Radio Communication System, Coordinator Unit and Communications Terminal - A radio communication system comprising a coordinator unit and at least one communications terminal configured for the radio communication system in which access to the radio resource is performed in accordance with time-division multiplexing, wherein the radio resource is divided into determinate time frames, the coordinator unit assigns to the at least one communications terminal, at least one useful data transmission time slot whose temporal position is determined in sequential time frames with respect to the beginning of the particular time frame, and the individual time frames are structured such that they contain a synchronization time slot, at least one useful data transmission time slot of equal length and one additional dynamic time slot. | 12-09-2010 |
20110102293 | Antenna Assembly - An antenna module that includes two directional antennae arranged in a back-to-back manner, and a converter. The converter realizes conversion between an omnidirectional antenna mode and a directional antenna mode by switching on two directional antennae simultaneously or by switching on one of the directional antennas. Alternatively, the antenna module includes a horizontal polarization antenna, a vertical polarization antenna and a converter, where the converter provides the conversion between the horizontal polarization antenna mode and the vertical polarization antenna mode by switching on the horizontal polarization antenna or the vertical polarization antenna. | 05-05-2011 |
20130207006 | Measuring Transducer for Detecting the Formation of Foam on a Liquid - A measuring transducer for detecting the formation of foam on a liquid, which is movably inserted into the liquid and the density of which is predetermined, or can be set, such that the measuring transducer floats on the surface of the liquid, wherein a device for determining the luminous flux incident on the top side of the measuring transducer is provided to detect the formation of foam on the liquid which, in many cases, is a process sequence property that is important for process optimization, and wherein an evaluation device of the measuring transducer is configured to output a signal for indicating the formation of the foam when the light flux determined undershoots a predefined threshold value. | 08-15-2013 |