Patent application number | Description | Published |
20090257527 | TRANSMISSION CIRCUIT, TRANSMISSION METHOD, AND USE - A method for the transmission and use of a power amplifier and transmission circuit of a radio network is provided that includes a power amplifier, which is connectable to an antenna, a counter whose output is connected to a control input of the power amplifier to output a count value to control the amplification of the power amplifier, a register for storing a register value, a comparator whose inputs are connected to the output of the counter and the register for comparing the register value with the count value, and a control circuit whose input is connected to the comparator and whose output is connected to the counter to control a counting process depending on the comparison result of the comparator. | 10-15-2009 |
20090302821 | CIRCUIT AND METHOD FOR OPERATING A CIRCUIT - A circuit and method for operating a circuit is provided that includes a circuit section that has a number of memory elements, a first voltage regulator that can be connected or is connected to the circuit section in order to operate the circuit section, a second voltage regulator that can be connected or is connected to the circuit section in order to preserve an information item stored in the memory elements, a switching device that is connected to the circuit section and is designed to deactivate and activate inputs of the circuit section. The circuit being configured to control a deactivation and activation of the first voltage regulator and the deactivation and activation of the inputs of the circuit section. | 12-10-2009 |
20100118854 | DUAL BAND WLAN COMMUNICATION FREQUENCY SYNTHESIZER TECHNIQUE - A dual band WLAN (Wireless Local Area Network) communications technique is provided where a frequency synthesizer unit generates an LO (Local Oscillator) signal at a frequency between both frequency bands and two downconversion units and/or two upconversion units are provided. One of the units performs conversion between the LO signal and an IF (Intermediate Frequency) signal while the other conversion takes place between the IF signal and a zero-IF or low-IF signal. Signal processing is performed on the zero-IF or low-IF signal. | 05-13-2010 |
20100165866 | CIRCUIT, SYSTEM AND METHOD FOR COMMUNICATION BETWEEN TWO NODES OF A RADIO NETWORK - A circuit, system, and method for range finding between two nodes of a radio network, in particular in conformance with the industry standard IEEE 802.15.4. A mode for finding the range to a second node is initiated by the first node. A command for range finding with the address of the second node is transmitted from the first node to the second node in the mode for range finding. The second node is switched into the range finding mode by the command. A sequence is controlled by the command in the range finding mode. As a result of the control by the command, a first signal is transmitted by the first node in a transmission time window of the sequence and the first signal is received by the second node in an associated reception time window of the sequence, and a first phase value of the first signal is measured. As a result of the control by the command, a second signal is transmitted by the second node in a transmission time window of the sequence and the second signal is received by the first node in an associated reception time window of the sequence, and a second phase value of the second signal is measured. As a result of the control by the command, the first frequency of the first signal is changed by a frequency difference and the second frequency of the second signal is changed by the frequency difference in a subsequent time window of the sequence. | 07-01-2010 |
20100167661 | TRANSMITTER-RECEIVER CIRCUIT AND METHOD FOR DISTANCE MEASUREMENT BETWEEN A FIRST NODE AND A SECOND NODE OF A RADIO NETWORK - A transmitter-receiver circuit and a method for distance measurement between a first node and a second node of a radio network is provided, wherein a mode of the first node and a mode of the second node are switched from a normal mode for communication in the radio network to a mode for distance measurement, wherein, in the mode for distance measurement for a transit time measurement, a radio signal is transmitted by the first node and received by the second node and a radio signal is transmitted by the second node and received by the first node and a first distance value is determined by measuring the transit time of the radio signals. In the mode for distance measurement, for a phase measurement an unmodulated carrier signal is transmitted as a radio signal by the first node and received by the second node and an unmodulated carrier signal is transmitted as a radio signal by the second node and received by the first node and a second distance value is determined by measurement and calculation from four values of the phases for different frequencies of the radio signals. Whereby, the distance between the first node and the second node is calculated from the first distance value of the transit time measurement and the second distance value of the phase measurement. | 07-01-2010 |
20100167662 | SYSTEM, METHOD, AND CIRCUIT FOR DISTANCE MEASUREMENT BETWEEN TWO NODES OF A RADIO NETWORK - A system and method for distance measurement between two nodes of a radio network is provided. A first unmodulated carrier signal is transmitted by the first node and received by the second node. A second unmodulated carrier signal is transmitted by the second node and received by the first node. A first value and a second value of a first phase are measured by the first node, whereby the first value of the first phase is assigned to a first frequency of the received second carrier signal and the second value the first phase is assigned to a second frequency of the received second carrier signal, whereby the first frequency and the second frequency have a frequency difference. A third value and a fourth value of a second phase are measured by the second node, whereby the third value of the second phase is assigned to a third frequency of the received first carrier signal and the fourth value of the second phase to a fourth frequency of the received first carrier signal, whereby the third frequency and the fourth frequency have the frequency difference. The distance is determined from the frequency difference from the first value and the second value of the first phase and from the third value and fourth value of the second phase. | 07-01-2010 |
20110006942 | CIRCUIT AND METHOD FOR DISTANCE MEASUREMENT BETWEEN TWO NODES OF A RADIO NETWORK - A circuit of a node of a radio network, and a method for distance measurement with a transceiver for receiving a first signal with a first frequency by downmixing to an intermediate frequency, with a phase measurement unit, which is set up to determine a first value of a first phase for a first frequency value of the first frequency. The transceiver is formed to transmit a second signal with a first frequency value of a second frequency for determining a first value of a second phase. The control circuit is set up to change the first frequency and the second frequency, in that a second frequency value of the first frequency and the first frequency value of the first frequency have a frequency difference, and whereby a second frequency value of the second frequency and the first frequency value of the second frequency have the frequency difference. The phase measurement unit is set up to determine a second value of the first phase for the second frequency value of the first frequency. The first frequency of the first signal and the second frequency of the second signal are spaced apart by an amount of the intermediate frequency. | 01-13-2011 |
20120236674 | Circuit and Method for Operating a Circuit - A circuit and method for operating a circuit is provided that includes a circuit section that has a number of memory elements, a first voltage regulator that can be connected or is connected to the circuit section in order to operate the circuit section, a second voltage regulator that can be connected or is connected to the circuit section in order to preserve an information item stored in the memory elements, a switching device that is connected to the circuit section and is designed to deactivate and activate inputs of the circuit section. The circuit being configured to control a deactivation and activation of the first voltage regulator and the deactivation and activation of the inputs of the circuit section. | 09-20-2012 |
20130155887 | Circuit, System and Method for Communication Between Two Nodes of a Radio Network - A first node of a radio network initiates a mode for finding the range to a second node. The first node transmits to the second node, with the address of the second node, a range finding command, which switches the second node into the range finding mode and controls a sequence. The first node transmits in a transmission time window a first signal, which is received by the second node in an associated reception time window, a first phase value of the first signal being measured. The second node transmits in a transmission time window a second signal, which is received by the first node in an associated reception time window, a second phase value of the second signal being measured. The first frequency is changed by a frequency difference and the second frequency is changed by the frequency difference in a subsequent time window of the sequence. | 06-20-2013 |
20130288611 | Circuit and Method for Distance Measurement Between Two Nodes of a Radio Network - A circuit of a node of a radio network, and a method for distance measurement with a transceiver for receiving a first signal with a first frequency by downmixing to an intermediate frequency, with a phase measurement unit, which is set up to determine a first value of a first phase for a first frequency value of the first frequency. The transceiver is formed to transmit a second signal with a first frequency value of a second frequency for determining a first value of a second phase. The control circuit is set up to change the first frequency and the second frequency, in that a second frequency value of the first frequency and the first frequency value of the first frequency have a frequency difference, and whereby a second frequency value of the second frequency and the first frequency value of the second frequency have the frequency difference. The phase measurement unit is set up to determine a second value of the first phase for the second frequency value of the first frequency. The first frequency of the first signal and the second frequency of the second signal are spaced apart by an amount of the intermediate frequency. | 10-31-2013 |
20140248841 | System, Method, and Circuit for Distance Measurement Between Two Nodes of a Radio Network - A system and method for distance measurement between two nodes of a radio network is provided. A first unmodulated carrier signal is transmitted by the first node and received by the second node. A second unmodulated carrier signal is transmitted by the second node and received by the first node. A first value and a second value of a first phase are measured by the first node, whereby the first value of the first phase is assigned to a first frequency of the received second carrier signal and the second value the first phase is assigned to a second frequency of the received second carrier signal, whereby the first frequency and the second frequency have a frequency difference. A third value and a fourth value of a second phase are measured by the second node, whereby the third value of the second phase is assigned to a third frequency of the received first carrier signal and the fourth value of the second phase to a fourth frequency of the received first carrier signal, whereby the third frequency and the fourth frequency have the frequency difference. The distance is determined from the frequency difference from the first value and the second value of the first phase and from the third value and fourth value of the second phase. | 09-04-2014 |
20140293814 | Circuit, System and Method for Communication Between Two Nodes of a Radio Network - A first node of a radio network initiates a mode for finding the range to a second node. The first node transmits to the second node, with the address of the second node, a range finding command, which switches the second node into the range finding mode and controls a sequence. The first node transmits in a transmission time window a first signal, which is received by the second node in an associated reception time window, a first phase value of the first signal being measured. The second node transmits in a transmission time window a second signal, which is received by the first node in an associated reception time window, a second phase value of the second signal being measured. The first frequency is changed by a frequency difference and the second frequency is changed by the frequency difference in a subsequent time window of the sequence. | 10-02-2014 |