Abstract:
Embodiments of the present invention pertain to optical wireless architecture. More particularly, certain embodiments of the invention pertain to a novel method and apparatus to generate millimeter-wave signals with simple and/or low cost architecture. Simple millimeter-wave generation and dispersion-tolerant transmission is based on photonic mixing of two free-running lightwaves and self-mixing down-conversion. More particularly, heterodyne mixing of two free run lightwaves is achieved, wherein one lightwave is modulated by an external modulator driven by electrical data as one of the side-bands of a millimeter-wave signal. Optical to electrical conversion is performed and the millimeter-wave signal is broadcasted by a high-frequency antenna to a receiving side having a local oscillator with self-mixing architecture to down-convert the radio frequency to its baseband form.
Abstract:
An interconnect component is provided fabricated as a preassembled optoelectronic interconnect structure. The interconnect structure has an optical waveguide link with first and second optoelectronic circuits attached to first and second ends of the waveguide link. The optoelectronic circuits include active optical componentry which facilitates optical signal communication across the optical waveguide link. Further, first and second pluralities of electrical contacts are associated with the first and second optoelectronic circuits, respectively, to facilitate electrically, operatively connecting the interconnect structure between first and second components of an electronic assembly as, for instance, a single, field-replaceable unit. The first and second components of the electronic assembly may be, for instance, stacked electronic components of the electronic assembly, or laterally offset components of a substantially planar electronic assembly.
Abstract:
A light array includes lights that transmit modulated light to indicate their unique light identifiers (IDs) and lights that transmit unmodulated light. A light receiver records images of the light array and recovers the light IDs from the modulated light. The light receiver uses the IDs to retrieve a light map representative of the light array. The receiver aligns the retrieved light map with the recorded images of the light array, and accesses real-world positions of all of the light in the light array, as deployed, based on the aligned light map. The light receiver determines a 3-dimensional position of the light receiver relative to the light array
Abstract:
Example method, apparatus, and system embodiments are disclosed to provide a high data throughput optical communication link. An example embodiment comprises: a high frequency optical receiver configured to receive signals modulated with high frequency data; an optical waveguide having a receiving portion and a transmitting portion juxtaposed with the receiver, configured to transfer signals incident on the receiving portion, to the transmitting portion, and to transmit the signals to the receiver; a guide portion configured to releasably engage another apparatus, for positioning the waveguide with respect to the other apparatus, to receive at the receiving portion of the waveguide, signals from the other apparatus, for delivery to the receiver; and a wireless power circuit configured to exchange wireless power with the other apparatus, to convert between electrical signals modulated with high frequency data and the optical signals modulated with high frequency data received by the waveguide.
Abstract:
Optical distributed antenna systems comprising a head-end unit adapted to transmit downlink a modulated optical signal with wavelength λ0 and N un-modulated optical signals with wavelength λN and N remote units (RU) and including at least one circulator. In some embodiments, an HE unit includes an arrangement of a single circulator coupled to a single detector, the arrangement preventing beating. In some embodiments, a RU includes a reflective electro-absorption transceiver (REAT) which includes a single optical interface and a single RF port. The REAT detects the optical signal with λ0 and converts it into a RF signal, and reflects an un-modulated optical signal with wavelength λN to provide a modulated uplink optical signal. In some embodiments, a RU is configured as an optical antenna unit. In some embodiments, a plurality of RUs is combined with passive optical distribution units to provide hierarchical DAS architectures.
Abstract:
An optical transmission module includes an optical transmitting unit and an optical receiving unit. The optical transmitting unit includes a first laser diode and a second laser diode. The optical receiving unit includes a first photo diode and a second photo diode, in which the second photo diode is electrically connected to the first photo diode. The second photo diode converts the light energy of the light transmitted by the second laser diode into electrical energy to drive the first photo diode so as to convert the optical signal transmitted by the first laser diode into an electrical signal.
Abstract:
A wavelength sensing lighting system may include a light source, a sensor and a controller. One or more light sources and sensors may be included in an array. The light source may emit an illuminating light and the sensor may sense an environmental light. The illuminating light may include data light. The lighting system may include a plurality of nodes connected in a network. The nodes may communicate by emitting and receiving the data light, which may be analyzed by the controller. The light source and the sensor may be provided by a light emitting semiconductor device that is capable of emitting illuminating light and receiving environmental light. A conversion material may convert the wavelength of a source light into a converted light. The conversion material may increase the wavelength range of light emittable and detectable by the lighting system.
Abstract:
An example of peripheral device adds a predetermined function to a mobile device having an infrared communication function. The peripheral device includes an additional function unit, an infrared communication unit, and a support unit. The additional function unit has the predetermined function. The infrared communication unit is capable of performing infrared communication with the mobile device. The support unit detachably supports the mobile device so that a light emitting/receiving unit for infrared light of the mobile device is positioned so as to be capable of transmitting or receiving infrared light to or from the infrared communication unit.
Abstract:
Embodiments of the disclosure relate to a biosample cartridge that includes storage slots for holding biosample plates. The cartridge has the same form factor as data tape cartridges to allow the cartridge to be handled by the same robotic mechanisms that handle data cartridges in an automated tape library. One aspect of the disclosure concerns a biosample storage cartridge that has a movable door to provide access to inside the cartridge and a plate holder disposed inside the cartridge. The plate holder includes a plurality of slots for receiving biosample plates that are scanned and processed by the automated tape library.
Abstract:
A distributed antenna system includes a first antenna disposed covering a predetermined communication range, the first antenna carrying out a communication at least at a low-frequency band, and a plurality of second antennas disposed covering the predetermined communication range, the plurality of second antennas carrying out a communication at a high-frequency band. The distributed antenna system is operable to carry out a communication between the first antenna and the second antennas, and a mobile terminal located within the predetermined communication range by means of carrier aggregation using the low-frequency band and the high-frequency band. The distributed antenna system further includes a BB module equipped in a base station for carrying out a communication within the predetermined communication range, the first antenna and the second antennas being each connected to the one BB module via an RF module.