U-blox Ag

Roche Molecular Systems, Inc.

Intermec IP Corporation

Thomas Brauner

Armin Birrer

Heinz Trueeb

Eero Aho

Roland Küng

Zhenlan Cheng

Toni Huovinen

Barbara Baggini

A GNSS receiver having test signal based failure detection, comprises: a signal generator configured to generate a test signal, the test signal having characteristics of a GNSS signal; one of more amplifiers configured to amplify the test signal; a signal chain configured to receive the amplified test signal at an input node of the signal chain and process the received test signal; and a signal processor configured to: monitor the test signal by: obtaining one or more output signals of the device at one or more output node; recovering the test signal from the one or more output signals, and determining whether one or more errors occurred based on parameters of the recovered test signal based on parameters of the recovered test signal; identify a device failure based on the determined one or more errors; and generate notifications relating to the device failure.

Method and apparatus for diagnosing device failure

A radio frequency signal is frequency-translated to form a complex first intermediate signal where a frequency corresponding to a GPS center frequency is at an intermediate frequency. In a multiplexing conversion unit a complex multiplexed conversion signal which assumes different conversion frequencies is derived from a clock signal where the frequency of the latter is divided alternately by one of two divisors in a divider circuit and further by two in a phase shifter. The conversion signal is mixed with the first intermediate signal in a conversion mixer to provide a multiplexed second intermediate signal where, depending in each case on the conversion frequency, a frequency corresponding to a GLONASS center frequency and a frequency corresponding to a BeiDou center frequency are alternately shifted close to the intermediate frequency. The first intermediate signal and the second intermediate signal are then processed in a baseband unit.

Methods of processing a radio frequency signal, signal processing devices for carrying out the methods, radio frequency front-ends, radio receivers and GNSS receivers

A fractional-N PLL synthesizer has an up-down counter counting up for positive edges of a frequency-divided signal produced by a frequency divider with a fractional divide ratio in a feedback path of the synthesizer and down for positive edges of a reference signal. A phase offset between portions of the synthesizer signal before and after a loss-of-lock interval is then assessed as a numerical value proportional to the product of the divide ratio and the cycle difference registered by the up-down counter () after the loss-of-lock interval. A correction term derived from the phase offset can be used in a signal processing device as employed, e.g., in a GNSS receiver, for producing, from an analog input signal, a phase-corrected baseband signal where portions of the signal before and after loss of lock are phase coherent.

Methods and systems for determining an offset term for a synthesizer signal, and methods and systems for producing a phase-corrected digital signal

A device for operating an RFID writing/reading device with transmitted signal suppression includes the RFID writing/reading device and a reflection modulator. The RFID writing/reading device includes a transmitter, a receiver with a signal processor, a directional coupler with a first, a second, a third and a fourth port, and an antenna. The reflection modulator is connected to the fourth port of the directional coupler. The reflection modulator includes a first setting element and a second setting element. The reflection modulator is configured to reflect a copy of a transmitted signal from the RFID writing/reading device, the amplitude and phase of which copy have been weighted, to the directional coupler. The directional coupler is configured to add the weighted copy of the transmitted signal to a received signal from the antenna in the directional coupler.

Device and method for suppressing a transmitted signal in a receiver of an RFID writing/reading device

Devices and methods for the identification of test tubes in a test tube rack having a RFID chip, and including an antenna structure elements for wireless coupling with the RFID chip, such that the location of the RFID chip determines the orientation of the test tube rack and the position of the test tube, and coupling of the RFID chips attached to the test tube racks is independent of the direction of insertion of the test tube rack.

Laboratory device, laboratory rack assembly and method for coupling an RFID chip

The invention relates to devices and methods for the identification of test tubes in a test tube rack using RFID technology.

Growing community of inventors

Zurich, Switzerland

Thomas Brauner