Abstract: A Lidar system and method of detecting an object is disclosed. The Lidar system includes a photodetector, a spectrum analyzer and a processor. The photodetector generates an electrical signal in response to a reflected light beam received at the photodetector, the reflected light beam being a reflection of a chirp signal from the object. The electrical signal has a bandwidth the same as a bandwidth of the chirp signal. The spectrum analyzer includes a power divider that partitions the electrical signal into a plurality of channels, an analog-to-digital converter that converts the electrical signal within a selected channel from an analog signal to a digital signal, and a comb filter that provides output from the selected channel from the power divider to the analog-to-digital converter. The processor determines a parameter of the object from the digital signal in the selected channel.

Abstract: A Lidar system, photonic chip and method of detecting an object. The photonic chip includes a laser and one or more photodetectors. The laser generates a transmitted light beam. The one or more photodetectors are receptive to a reflected light beam that is a reflection of the transmitted light beam from an object and generate an electrical signal as output in response to the reflected light beam signal. An amplifier is configured to amplify a signal related to the reflected light beam to amplify the output signal of the one or more photodetectors. A processor determines a parameter of the object from the amplified output signal.

Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip having a laser, an on-chip frequency shifter, a combiner and a first set of photodetectors. The laser generates a transmitted light beam and an associated local oscillator beam within the photonic chip. The on-chip frequency shifter shifts a frequency of the local oscillator beam. The combiner combines a reflected light beam with the frequency-shifted local oscillator beam, wherein the reflected light beam is a reflection of the transmitted light beam from the object to generate a first electronic signal at the first set of photodetectors. A processor obtains a first measurement of a parameter of the object from the first electronic signal. The vehicle includes a navigation system for navigating the vehicle with respect to the object using at least the first measurement of the parameter.

Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip, and a laser integrated into the photonic chip. The laser has a front facet located at a first aperture of the photonic chip to direct a transmitted light beam into free space. A reflected light beam that is a reflection of the transmitted light beam is received at the photonic chip and a parameter of the object is determined from a comparison of the transmitted light beam and the reflected light beam. A navigation system operates the vehicle with respect to the object based on a parameter of the object.

Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip having an aperture, one or more photodetectors and a circulator. A transmitted light beam generated within the photonic chip exits the photonic chip via the aperture and a reflected light beam enters the photonic chip via the aperture, the reflected light beam being a reflection of the transmitted light beam from the object. The one or more photodetectors measure the parameter of the object from at least the reflected light beam. The circulator integrated into the photonic chip directs the transmitted light beam toward the aperture and directs the reflected light beam from the aperture to the one or more photodetectors. A navigation system navigates the vehicle with respect to the object based on the parameter of the object.

Abstract: A vehicle, Lidar system and method of detecting an object. The Lidar system includes an optical phase array and a mirror. The optical phase array directs a transmitted light beam generated by a laser along a first direction within a first plane. The mirror receives the transmitted light beam from the optical phase array and directs the transmitted light beam along a second direction within a second plane.

Abstract: The present application generally relates to antennas embedded in or on glass structures. More specifically, the application teaches a wideband conformal antenna employing thin film constructions facilitating attachment to external automotive surfaces with capacitive feedback and integrated lighting to enable a conformal activation switch.

Abstract: A window assembly includes a first radio frequency device disposed between a first window substrate and a second window substrate. An embedded coplanar waveguide is disposed between the first window substrate and the second window substrate, and is attached to the first radio frequency device. An exterior coplanar waveguide is disposed adjacent an exterior side surface of the first window substrate, and is disposed opposite the embedded coplanar waveguide for communicating electromagnetic waves therebetween. A printed circuit board is attached to and interconnects the exterior coplanar waveguide and a radio frequency cable connector. The radio frequency cable connector is configured for connection to a second radio frequency device. An adhesive layer bonds the printed circuit board to the exterior side surface of the first window substrate.

Abstract: A processor-implemented method and a controller in a vehicle for estimating a wireless channel impulse response in a mobile environment are provided. The method comprises: receiving an orthogonal frequency-division multiplexing (OFDM) signal; applying a maximum likelihood estimator to the received OFDM signal to identify a data symbol that provides a smooth channel response; and estimating the channel impulse response by performing a division or reverse convolution operation between the received OFDM signal and the identified data symbol. The controller is configured to: receive an OFDM signal; apply a maximum likelihood estimator to the received OFDM signal to identify a data symbol that provides a smooth channel response; and estimate the channel impulse response by performing a division or reverse convolution operation between the received OFDM signal and the identified data symbol. The vehicle can use the estimated channel impulse response to decode data symbols from future instances of the OFDM signal.

Abstract: The present application electromagnetic signal filtering. More specifically, the application teaches a system and method for affixing a frequency selective surface to an existing antenna radome, such that unwanted signals are attenuated before reaching an antenna structure within the antenna radome.

Abstract: A thin film, flexible, co-planar waveguide (CPW), antenna structure suitable to be mounted on vehicle glass and that has particular application for MIMO LTE applications in, for example, the 0.46-3.8 GHz frequency band. The antenna structure includes a planar antenna formed on a substrate that includes a ground plane having an elliptical cut-out slot section defined within an outer perimeter portion of the ground plane and an antenna radiating element extending into the slot from the perimeter portion.

Abstract: A thin film, flexible antenna that has particular application to be adhered to vehicle glass, where the antenna has a wideband antenna geometry and is operable to receive right-hand or left-hand circularly polarized signals from, for example, GPS and SDARS satellites. The antenna is a printed planar antenna formed to the substrate and includes a ground plane having a slot formed therein and a tuning sleeve having a vertical portion and a horizontal portion. The planar antenna further includes a radiating element positioned adjacent to the tuning sleeve and including a feed portion positioned within the slot, where the radiating element includes a first horizontal portion and a second horizontal portion extending from a vertical portion towards the vertical portion of the sleeve. The ground plane is operable to generate circularly polarized signals to be received by the radiating element where the sleeve provides phase tuning of the signals.

Abstract: A processor-implemented method by a message recipient in a vehicle or on a mobile device for decoding overlapping wireless messages is provided. The method comprises: receiving a first message from a first message sender that overlaps with a second message received from a second message sender; estimating, in a first signal recovery phase, a received data symbol (d0) from the first message and a channel impulse response (h1) corresponding to a data channel between the message recipient and the second message sender; estimating, in a second signal recovery phase, a received data symbol (d0)? from the first message and a received data symbol (d1) from the second message; and reconstructing the first message from the estimated data symbol (d0) estimated in the first signal recovery phase and estimated data symbol (d0)? estimated during the second signal recovery phase and reconstructing the second message from the estimated data symbol (d1) estimated during the second signal recovery phase.

Abstract: A Lidar system and method of detecting an object is disclosed. The Lidar system includes a photodetector, a spectrum analyzer and a processor. The photodetector generates an electrical signal in response to a reflected light beam received at the photodetector, the reflected light beam being a reflection of a chirp signal from the object. The electrical signal has a bandwidth the same as a bandwidth of the chirp signal. The spectrum analyzer includes a power divider that partitions the electrical signal into a plurality of channels, an analog-to-digital converter that converts the electrical signal within a selected channel from an analog signal to a digital signal, and a comb filter that provides output from the selected channel from the power divider to the analog-to-digital converter. The processor determines a parameter of the object from the digital signal in the selected channel.

Abstract: A Lidar system, photonic chip and method of detecting an object. The photonic chip includes a laser and one or more photodetectors. The laser generates a transmitted light beam. The one or more photodetectors are receptive to a reflected light beam that is a reflection of the transmitted light beam from an object and generate an electrical signal as output in response to the reflected light beam signal. An amplifier is configured to amplify a signal related to the reflected light beam to amplify the output signal of the one or more photodetectors. A processor determines a parameter of the object from the amplified output signal.

Abstract: A vehicle, Lidar system and method of detecting an object. The Lidar system includes an optical phase array and a mirror. The optical phase array directs a transmitted light beam generated by a laser along a first direction within a first plane. The mirror receives the transmitted light beam from the optical phase array and directs the transmitted light beam along a second direction within a second plane.

Abstract: A vehicle, Lidar system and a method of detecting an object is disclosed. The Lidar system includes a first photonic chip, a second photonic chip, a mirror and a processor. The first photonic chip generates a first transmitted light beam, and the second photonic chip generates a second transmitted light beam. The mirror directs the first transmitted light beam over a first field of view and the second transmitted light beam over a second field of view, with an object being in at least one of the first and second fields of view. The processor determines a parameter of the object from at least one of a first reflection from the first field of view and a second reflection from the second field of view. A navigation system can be used to navigate the vehicle with respect to the object based on the parameter of the object.

Abstract: The present application generally relates to antennas embedded in or on glass structures. More specifically, the application teaches a method and apparatus for camouflaging near-transparent conductors by adding additional conductive or non-conductive materials of non-conductive areas by applying the additional materials in the same plane or a different plane than the antenna.

Abstract: The present application generally relates to antennas embedded in or on glass structures. More specifically, the application teaches a wideband coplanar antenna employing a slot shape in the ground plane configured to accomplish a broadband frequency response wherein the two axis of symmetry in the antenna design are fragmented in order to maximize resonances of RF currents over broader frequency bands.

Abstract: A vehicle, Lidar system and method of detecting an object is disclosed. The Lidar system includes a photonic chip having a laser, an on-chip frequency shifter, a combiner and a first set of photodetectors. The laser generates a transmitted light beam and an associated local oscillator beam within the photonic chip. The on-chip frequency shifter shifts a frequency of the local oscillator beam. The combiner combines a reflected light beam with the frequency-shifted local oscillator beam, wherein the reflected light beam is a reflection of the transmitted light beam from the object to generate a first electronic signal at the first set of photodetectors. A processor obtains a first measurement of a parameter of the object from the first electronic signal. The vehicle includes a navigation system for navigating the vehicle with respect to the object using at least the first measurement of the parameter.