Abstract: A pilot tone signal generator, a magnetic resonance tomograph, a method for transmission of a synchronization signal, and a computer program product are disclosed. The pilot tone signal generator includes a receive unit for receipt of a synchronization signal of a system control unit of a magnetic resonance tomograph. The synchronization signal may include a clock signal, and the pilot tone signal generator is configured to emit a pilot tone signal as a function of the synchronization signal.

Abstract: A position detection apparatus including: an electromagnetic induction module configured to send to a mode triggering module an induced voltage signal generated due to a change in a magnetic field; a mode triggering module configured to output a preset trigger signal based on the induced voltage signal, the trigger signal corresponding to the induced voltage signal; and a signal generating module configured to generate an analog signal of a first mode corresponding to the induced voltage signal based on the received trigger signal, and send the analog signal of the first mode to an MR receiving module of an MRI system via an antenna module, so that: the MR receiving module judges whether the wireless squeeze ball has entered the interior of a body coil from outside a tubular body of the MRI system, based on the analog signal of the first mode.

Abstract: A peripheral device for a magnetic resonance tomography unit. The peripheral device includes a first sensor for receiving an electromagnetic data signal from the environment of the peripheral device. The peripheral device is configured to execute signal processing in dependence on the electromagnetic data signal and a frequency of the electromagnetic data signal is greater than a Larmor frequency of the magnetic resonance tomography unit.

Abstract: A coil interface apparatus may include: a plug, for connection to a coil apparatus for receiving a magnetic resonance signal via a test subject in the MRI device. The plug may include a first power coupler and at least one first signal coupler. The apparatus may include a socket, for connection to a main body of the MRI device. The socket may include a second power coupler and at least one second signal coupler. The at least one first signal coupler may send a magnetic resonance signal received from the coil apparatus to the at least one second signal coupler by induction. The at least one second signal coupler may receive the sent magnetic resonance signal by induction. The second power coupler may send a power signal to the first power coupler by induction, and the first power coupler may receive the sent power signal.

Abstract: An imaging apparatus has an MRT system with an MR receiving antenna configured to receive a first receive signal containing an MR signal from an object to be examined during an examination period. The imaging apparatus includes a modality for examining the object and/or for acting on the object via mechanical or electromagnetic waves, wherein the modality has an electronic circuit. The imaging apparatus includes an auxiliary antenna arranged and configured to receive a second receive signal containing an interference signal generated by the electronic circuit during the examination period. The imaging apparatus has a processing system configured to suppress interference in the first receive signal based on the first and the second receive signal.

Abstract: A magnetic resonance apparatus includes a scanner, a patient accommodating region, a patient support apparatus which can be moved within the patient accommodating region and a patient communication device. The patient communication device includes at least one communication element which has a radio-frequency transmitter.

Abstract: A pilot tone signal generator, a magnetic resonance tomograph, a method for transmission of a synchronization signal, and a computer program product are disclosed. The pilot tone signal generator includes a receive unit for receipt of a synchronization signal of a system control unit of a magnetic resonance tomograph. The synchronization signal may include a clock signal, and the pilot tone signal generator is configured to emit a pilot tone signal as a function of the synchronization signal.

Abstract: Techniques are disclosed for transferring at least one speech signal of a patient during a magnetic resonance imaging examination, wherein the speech signal is recorded by a speech recording device of a wireless communication device assigned to the patient and transmitted at least as part of a communication signal to a receive device of the magnetic resonance imaging device. The communication signal is a modulated signal or is generated from a modulated signal, and to generate the modulated signal the speech signal is modulated onto a carrier signal. The modulated signal is generated by way of a modulation with reduction of the level of the carrier signal.

Abstract: A magnetic resonance apparatus with a scanner unit, a patient receiving area at least partly surrounded by the scanner unit, and a patient display unit arranged within the patient receiving area, wherein the patient display unit includes a reflective display.

Abstract: A peripheral device for a magnetic resonance tomography unit. The peripheral device includes a first sensor for receiving an electromagnetic data signal from the environment of the peripheral device. The peripheral device is configured to execute signal processing in dependence on the electromagnetic data signal and a frequency of the electromagnetic data signal is greater than a Larmor frequency of the magnetic resonance tomography unit.

Abstract: The disclosure relates to a method, a computer program, a data storage medium, a system, and a local-coil apparatus for a magnetic resonance tomography MRT unit having at least one receive coil configured to receive an MRT signal and a receive amplifier apparatus having at least one output amplifier unit and configured to amplify the received MRT signal in order to drive an analog-to-digital converter ADC. The at least one output amplifier unit is configured to amplify the MRT signal, below a signal-level threshold value, by a high gain, and, above the signal-level threshold value, by a low gain. The receive amplifier apparatus is configured to change a bias current of the at least one output amplifier unit according to a defined MRT signal level.

Abstract: An imaging apparatus has an MRT system with an MR receiving antenna configured to receive a first receive signal containing an MR signal from an object to be examined during an examination period. The imaging apparatus includes a modality for examining the object and/or for acting on the object via mechanical or electromagnetic waves, wherein the modality has an electronic circuit. The imaging apparatus includes an auxiliary antenna arranged and configured to receive a second receive signal containing an interference signal generated by the electronic circuit during the examination period. The imaging apparatus has a processing system configured to suppress interference in the first receive signal based on the first and the second receive signal.

Abstract: The disclosure relates to a method, a computer program, a data storage medium, a system, and a local-coil apparatus for a magnetic resonance tomography MRT unit having at least one receive coil configured to receive an MRT signal and a receive amplifier apparatus having at least one output amplifier unit and configured to amplify the received MRT signal in order to drive an analog-to-digital converter ADC. The at least one output amplifier unit is configured to amplify the MRT signal, below a signal-level threshold value, by a high gain, and, above the signal-level threshold value, by a low gain. The receive amplifier apparatus is configured to change a bias current of the at least one output amplifier unit according to a defined MRT signal level.

Abstract: A receiving device for two signals having different center frequencies. The receiving device includes a sampler. A first signal of the two signals and a second signal of the two signals are supplied to a first signal-input of the sampler in a time multiplex. The sampler digitizes the first signal and the second signal at a sampling rate. The receiving device also includes a frequency mirroring device that mirrors the second digital signal in a frequency domain about a quarter of the sampling rate.

Abstract: A transmitting device and a method for transmitting two high frequency signals for a magnetic resonance tomograph are provided. The transmitting device includes a shielded balanced transmission line, a first signal driver, and a second signal driver. The first signal driver and the second signal driver feed the first high frequency signal to a first conductor and the second high frequency signal to a second conductor of the balanced transmission line. A shielding of the balanced transmission line has an electrical connection to a common ground potential for the first signal driver and the second signal driver.

Abstract: A device for recovering a temporal reference in a free-running magnetic resonance tomography (MRT) receive chain includes a time reference encoder and a time reference decoder. The time reference encoder is configured to generate a modulation signal as a function of a reference clock, where the modulation signal is configured for a correlation with a temporal resolution less than a maximum predetermined phase deviation and a maximum that may clearly be identified. The time reference decoder is configured to receive, via the first signal input, a receive signal as a function of the modulation signal, perform a correlation with a reference signal, and generate a signal as a function of a temporal reference of the modulation signal in the receive signal in relation to the reference signal.

Abstract: A connecting device for establishing a data link between a docking device provided at a part of a magnetic resonance scanner, and a patient support, with at least one slot for a local coil, which can be docked to the docking device, has a first data transmission device on the patient support side, which interacts with a second data transmission device on the docking device side in order to establish the data link in the docked state. The data transmission devices each have at least one communication device designed for wireless near field communication.

Abstract: A magnetic resonance apparatus includes a scanner, a patient accommodating region, a patient support apparatus which can be moved within the patient accommodating region and a patient communication device. The patient communication device includes at least one communication element which has a radio-frequency transmitter.

Abstract: The disclosure relates to a local coil with a device for providing a first mixed frequency signal and a second mixed frequency signal by a first auxiliary frequency signal and a second auxiliary frequency signal. The device has an auxiliary mixer configured to generate the second mixed frequency signal from the first auxiliary frequency signal and the second auxiliary frequency signal. The local coil has a signal input including a first signal connection to the device. The local coil is configured to jointly receive the first auxiliary frequency signal and the second auxiliary frequency signal by way of the signal input and supply them to the device by way of the first signal connection.

Abstract: A receiving device for two signals having different center frequencies. The receiving device includes a sampler. A first signal of the two signals and a second signal of the two signals are supplied to a first signal-input of the sampler in a time multiplex. The sampler digitizes the first signal and the second signal at a sampling rate. The receiving device also includes a frequency mirroring device that mirrors the second digital signal in a frequency domain about a quarter of the sampling rate.