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| Number | Title | Issue Date |
| 8170163 | Partial response receiver A signaling system is described. The signaling system comprises a transmit device, a receive device including a partial response receive circuit, and a signaling path coupling the transmit device and the receive device. The receive device observes an equalized signa... | 05/01/2012 |
| RE39982 | Diversity circuit for magnetic communication system A magnetic communication system includes a transmitter have a single coil transducer, and a receiver having a three orthogonally oriented coil transducers. The signal processing circuitry in the receiver adjusts the phases of the signals received by the three transd... | 01/01/2008 |
| 7200196 | Interpolation based timing recovery The present invention provides a solution that eliminates both the voltage-controlled oscillator (“VXCO” 105) and its associated D/A converter (120) from the timing recovery scheme, thereby significantly reducing manufacturing costs for modems, suc... | 04/03/2007 |
| 7177401 | TTY communication over packet networks A system to enable TTY communication between a legacy TTY phone and an IP phone over a packet network using a TTY relay protocol established between the IP phone and a media gateway at a central office of the PSTN. The system may also use a voice over Internet Proto... | 02/13/2007 |
| 7068732 | Receiving apparatus and power control method A receiving apparatus and a power control method that permit standby power consumption to be reduced. If a Digital Signal Processor (DSP) stores an Entitlement Management Message (EMM), which is contained in a MPEG transport stream (MPEG TS) packet, in a memory, the... | 06/27/2006 |
| 6895189 | Optical synchronization system A synchronization system in accordance with the principles of the invention includes a central synchronizing management unit, at least one synchronization distribution unit, and at least one network element. Each synchronization distribution unit receives synchroniz... | 05/17/2005 |
| 6798840 | Fast switchover output protection The invention is a communication system having a series of output modules that provide continuous synchronization output signals. Each output module has a driver assembly has a driver output and a backup selector output that is capable of driving a failed next drive... | 09/28/2004 |
| 6724804 | Frequency converter and radio communications system employing the same In a frequency converter, a phase-locked loop generates a local-oscillation signal having a low frequency, of a plurality of local-oscillation signals having different frequencies, based on an intermediate frequency beacon signal that results from mixing a predeterm... | 04/20/2004 |
| 6046681 | Remote controlled door lock system A Remote Controlled Door Lock System for securely retracting a locking bolt from engagement to a striker plate disposed in a door jamb. The inventive device includes a solenoid for retracting the lock bolt from engagement to the striker plate, a first mic... | 04/04/2000 |
| 5912925 | Diversity circuit for magnetic communication system A magnetic communication system includes a transmitter have a single coil transducer, and a receiver having a three orthogonally oriented coil transducers. The signal processing circuitry in the receiver adjusts the phases of the signals received by the t... | 06/15/1999 |
| 5859873 | Method and arrangement for non-contact transmission of measured values A measuring unit which is not easily accessible often has a power source which supplies power to the elements for the measuring operation, more particularly, the conversion of an analog measured signal into digital measured data, and for storage thereof, ... | 01/12/1999 |
| 5850416 | Wireless transmitter-receiver information device The disclosure is of an indoor transceiver system in which first electromagnetic waves at 20 KHz are transmitted from a single loop primary coil in or adjacent a room to a plurality of data storage devices in the same room and having respective multi-turn... | 12/15/1998 |
