Patent application number | Description | Published |
20080279567 | ASYMMETRIC ETHERNET OPTICAL NETWORK SYSTEM - An Ethernet-based optical network system includes a first optical transmitter that can receive a first electric signal and to produce a first optical signal, a first optical receiver that can convert the first optical signal to a second electric signal. The first electric signal, the first optical signal, and the second electric signal have a first transmission baud rate. A down converter can receive a third electric signal having the first transmission baud rate and to produce a fourth electric signal having a second transmission baud rate. A second optical transmitter can receive the fourth electric signal and produce a second optical signal having the second transmission baud rate. A second optical receiver can convert the second optical signal to a fifth electric signal having the second transmission baud rate. An up converter can convert the fifth electric signal to a sixth electric signal having the first transmission baud rate. | 11-13-2008 |
20090116845 | TETINTELLIGENT OPTICAL TRANSCEIVER CAPABLE OF OPTICAL-LAYER MANAGEMENT - An integrated optical transceiver includes an optical receiver that receives a first optical signal that comprises input user data and a first modulation signal. The first modulation signal includes first management information. The optical receiver can output a first electrical signal comprising the first modulation signal and to output a second electrical signal comprising the input user data in response to the first optical signal. A processing unit can demodulate the first electrical signal to extract the first management information. The processing unit can produce a modulation control signal in response to second management information. An optical transmitter can output a second optical signal in response to the modulation control signal and a third electrical signal comprising output user data. | 05-07-2009 |
20090214221 | INTELLIGENT OPTICAL SYSTEMS AND METHODS FOR OPTICAL-LAYER MANAGEMENT - An integrated optical transceiver includes an optical receiver that produces a first electrical signal at a reception electrical interface in response to a first optical signal, an optical transmitter that emits a second optical signal in response to a second electrical signal received at a transmission electrical interface, a first optical branching device that receives the first optical signal at an reception optical interface and to direct at least a portion of the first optical signal to the optical receiver, and a second optical branching device that directs the second optical signal to an transmission optical interface. The first optical branching device directs at least a portion of the first optical signal to the second optical branching device. The second optical branching device directs the portion of the first optical signal received from the first optical branching device to the transmission optical interface. | 08-27-2009 |
20090324237 | PLUGGABLE OPTICAL NETWORK UNIT CAPABLE OF STATUS INDICATION - A pluggable optical network unit includes a transceiver assembly configured to produce a first electrical signal in response to a first optical signal comprising reception signal data and to emit a second optical signal comprising transmission signal data in response to a second electrical signal. A data processing unit can extract the reception signal data from the first electrical signal and produce the second electrical signal in response to the transmission signal data. An interface unit can receive the reception signal data from the data processing unit, serialize the reception signal data, and send a third electric signal comprising the reception signal data to a network device that the pluggable optical network unit is plugged into. A management unit can modify the third electric signal in accordance to the operation status of at least one of the transceiver assembly or the data processing unit. | 12-31-2009 |
20110218413 | Method and Apparatus for Non-invasive Fetal Oximetry - Method and apparatus to non-invasively measure fetal blood oxygen saturation levels. Optical sensors capable of producing and detecting multiple wavelengths of tissue penetrating light are placed on the surface of the maternal abdomen, and the light beams directed to pass through at least a portion of the uterus containing the fetus. The fetal heart rate is monitored by Doppler ultrasound, and pure maternal optical signal related to maternal arterial blood flow are also measured. The optical sensors collect composite signals containing both maternal and fetal hemoglobin absorption spectral data and modulated by their respective pulsatile blood flows. The composite signals processed in the time domain and frequency domain, the pure maternal pulsatile optical signal used to extract the maternal contribution to the composite signal, and the fetal pulsatile signal is used to lock onto and extract the fetal contribution to the composite signal, and a fetal blood oxygen level deduced. | 09-08-2011 |
Patent application number | Description | Published |
20140103486 | ROLLED-UP INDUCTOR STRUCTURE FOR A RADIOFREQUENCY INTEGRATED CIRCUIT (RFIC) - A rolled-up inductor structure for a radiofrequency integrated circuit (RFIC) comprises a multilayer sheet in a rolled configuration comprising multiple turns about a longitudinal axis. The multilayer sheet comprises a conductive pattern layer on a strain-relieved layer, and the conductive pattern layer comprises at least one conductive strip having a length extending in a rolling direction. The at least one conductive strip thereby wraps around the longitudinal axis in the rolled configuration. The conductive pattern layer may also comprise two conductive feed lines connected to the conductive strip for passage of electrical current therethrough. The conductive strip serves as an inductor cell of the rolled-up inductor structure. | 04-17-2014 |
20140104030 | ROLLED-UP TRANSFORMER STRUCTURE FOR A RADIOFREQUENCY INTEGRATED CIRCUIT (RFIC) - A rolled-up transformer structure comprises a multilayer sheet having a rolled configuration comprising multiple turns about a longitudinal axis. The multilayer sheet comprises more than one conductive pattern layer on a strain-relieved layer, including a first conductive film and a second conductive film separated from the first conductive film in a thickness direction. The first conductive film comprises an even number of primary conductive strips, where each primary conductive strip has a length extending in the rolling direction, and the second conductive film comprises an even number of secondary conductive strips, where each secondary conductive strip has a length extending in the rolling direction. In the rolled configuration, turns of the primary conductive strips and turns of the secondary conductive strips wrap around the longitudinal axis. The primary conductive strips serve as a primary winding and the secondary conductive strips serve as a secondary winding of the rolled-up transformer structure. | 04-17-2014 |
20140246764 | ROLLED-UP TRANSMISSION LINE STRUCTURE FOR A RADIOFREQUENCY INTEGRATED CIRCUIT (RFIC) - A rolled-up transmission line structure for a radiofrequency integrated circuit (RFIC) comprises a multilayer sheet in a rolled configuration comprising multiple turns about a longitudinal axis, where the multilayer sheet comprises a conductive pattern layer on a strain-relieved layer. The conductive pattern layer comprises a first conductive film and a second conductive film separated from the first conductive film in a rolling direction. In the rolled configuration, the first conductive film surrounds the longitudinal axis, and the second conductive film surrounds the first conductive film. The first conductive film serves as a signal line and the second conductive film serves as a conductive shield for the rolled-up transmission line structure. | 09-04-2014 |