Abstract: Certain embodiments of the disclosure propose a method for cancelling co-channel interference (self-jamming) generated by nonlinearities in the radio-frequency (RF) front-end devices. The proposed method utilizes an adaptive non-linear filter to generate a distorted version of the transmitted signal. The self-jamming interference may be mitigated utilizing the distorted signal through adaptive cancellation.

Abstract: A method for adaptive digital post distortion reduction is described. An analog radio frequency (RF) signal is received. The frequency of the analog RF signal is downconverted using analog circuitry. The analog RF signal is converted to a digital signal using an analog to digital converter (ADC). Digital post distortion reduction is applied to the digital signal to reduce nonlinearities in the digital signal.

Abstract: Multiple streams from multiple circuit paths are Block-TDM (Block-Time-Division-Multiplexing) aggregated into a single stream that passes via a single path through processing circuitry capable of handling the aggregated signal. The cost of providing redundant processing circuitry is avoided. After processing in the single path, the resulting signal is Block-TDM de-aggregated to generate multiple streams. Each output stream is substantially the same as if its corresponding input stream had been processed in a separate path using separate processing circuitry. The path-sharing technique is usable to pass multiple streams from multiple radio receivers through one superior Delta-Sigma ADC (DSADC) as opposed to using multiple flat ADCs to process information from the multiple receivers. In one example, the DSADC can be used because the aggregation is Block-TDM-based and the de-aggregator involves a digital low pass filter.

Abstract: A radon monitor includes a housing defining a housing cavity and having an opening in an exterior wall that is in fluid communication with the housing cavity to allow air to diffuse into and out of the housing cavity. The monitor also includes input and output units and a circuit board that is positioned in the housing cavity and supported by the housing. A passive, non-electrically powered sampling chamber defines a chamber cavity and is coupled to the circuit board. The circuit board defines a plurality of apertures that allow air to diffuse between the housing cavity and the chamber cavity. A detector for detecting radon is supported by the circuit board and positioned in the chamber cavity.

Abstract: Multiple streams from multiple circuit paths are Block-TDM (Block-Time-Division-Multiplexing) aggregated into a single stream that passes via a single path through processing circuitry capable of handling the aggregated signal. The cost of providing redundant processing circuitry is avoided. After processing in the single path, the resulting signal is Block-TDM de-aggregated to generate multiple streams. Each output stream is substantially the same as if its corresponding input stream had been processed in a separate path using separate processing circuitry. The path-sharing technique is usable to pass multiple streams from multiple radio receivers through one superior Delta-Sigma ADC (DSADC) as opposed to using multiple flat ADCs to process information from the multiple receivers. In one example, the DSADC can be used because the aggregation is Block-TDM-based and the de-aggregator involves a digital low pass filter.

Abstract: Certain embodiments of the disclosure propose a method for cancelling co-channel interference (self-jamming) generated by nonlinearities in the radio-frequency (RF) front-end devices. The proposed method utilizes an adaptive non-linear filter to generate a distorted version of the transmitted signal. The self-jamming interference may be mitigated utilizing the distorted signal through adaptive cancellation.

Abstract: A method for adaptive digital post distortion reduction is described. An analog radio frequency (RF) signal is received. The frequency of the analog RF signal is downconverted using analog circuitry. The analog RF signal is converted to a digital signal using an analog to digital converter (ADC). Digital post distortion reduction is applied to the digital signal to reduce nonlinearities in the digital signal.

Abstract: Passive switched-capacitor (PSC) filters are described herein. In one design, a PSC filter implements a second-order infinite impulse response (IIR) filter with two complex first-order IIR sections. Each complex first-order IIR section includes three sets of capacitors. A first set of capacitors receives a real input signal and an imaginary delayed signal, stores and shares electrical charges, and provides a real filtered signal. A second set of capacitors receives an imaginary input signal and a real delayed signal, stores and shares electrical charges, and provides an imaginary filtered signal. A third set of capacitors receives the real and imaginary filtered signals, stores and shares electrical charges, and provides the real and imaginary delayed signals. In another design, a PSC filter implements a finite impulse response (FIR) section and an IIR section for a complex first-order IIR section. The IIR section includes multiple complex filter sections operating in an interleaved manner.

Abstract: Among various methods and systems, a number of methods are disclosed for providing a rechargeable halogen-binding fabric to customers. One such method includes binding a first number of halogen atoms to a number of halogen-binding links that are bound to a fabric before the fabric is provided to a customer. The method also includes retrieving the fabric after a period of time in order to recharge a second number of halogen atoms that remains bound to the fabric to a level approximating the first number of halogen atoms.

Abstract: A portable electronic device or wireless communication device (WCD) has at least one provision for optional equipment or user services. Options are provided for a user in a menu selection for selection by the consumer of the options. The user selects the options for the particular WCD and the options are installed on delivery or prior to delivery, thereby providing the user with an initial selection of the options.

Abstract: A radon monitor includes a housing defining a housing cavity and having an opening in an exterior wall that is in fluid communication with the housing cavity to allow air to diffuse into and out of the housing cavity. The monitor also includes input and output units and a circuit board that is positioned in the housing cavity and supported by the housing. A passive, non-electrically powered sampling chamber defines a chamber cavity and is coupled to the circuit board. The circuit board defines a plurality of apertures that allow air to diffuse between the housing cavity and the chamber cavity. A detector for detecting radon is supported by the circuit board and positioned in the chamber cavity.

Abstract: Biological inspection procedures and surface sanitization procedures are incorporated with a garment providing service to look for and monitor the presence of microbes, such as bacteria in particular, and to eliminate such microbes within the garment service. Biological inspection procedures can be conducted on the garments themselves, or any surface of the garment facility, such as a surface onto which the garments may come into contact after laundering. Preferably, a washing procedure is conducted based upon a cleaning formulation to also minimize the presence of microbes. Garments are preferably inspected after they are laundered and ready for delivery to the customer. Facility surfaces, such as sorting and/or folding tables that may be utilized after laundering, are sanitized and then may be tested in accordance with the present invention to minimize the potential for contamination of garments from such surfaces.

Abstract: Biological inspection procedures and surface sanitization procedures are incorporated with a garment providing service to look for and monitor the presence of microbes, such as bacteria in particular, and to eliminate such microbes within the garment service. Biological inspection procedures can be conducted on the garments themselves, or any surface of the garment facility, such as a surface onto which the garments may come into contact after laundering. Preferably, a washing procedure is conducted based upon a cleaning formulation to also minimize the presence of microbes. Garments are preferably inspected after they are laundered and ready for delivery to the customer. Facility surfaces, such as sorting and/or folding tables that may be utilized after laundering, are sanitized and then may be tested in accordance with the present invention to minimize the potential for contamination of garments from such surfaces.

Abstract: Techniques for pre-correction of transmit signals are disclosed. In one aspect, a transmit antenna array configurable to generate multiple transmit beams is deployed. The parameters for configuring the antenna array are computed in response to channel estimates and a noise floor estimate made at the receiver. Information is transmitted in accordance with the multiple transmit beams, delayed as necessary, such that the multipaths may arrive time-aligned an in-phase at the receiver. In another aspect, pre-RAKE pre-correction is deployed by calculating Wiener weights. In yet another aspect, space-time diversity is deployed for calculating tap values for FIR filters used in transmission on the transmit antenna array. In yet another aspect, space only pre-correction is deployed. Various other aspects are also disclosed. These aspects have the benefit of reducing the interference experienced at a receiver, resulting in increased capacity, increased data throughput, and other system benefits.

Abstract: A wireless communication system includes a base station having a plurality of transmit antennas transmits pilot signals to a subscriber station. The subscriber station performs channel measurements on the signals received from the base station through at least two transmit paths and sends path characteristic information for each path to the base station. The base station uses the path characteristic information to determine how best to transmit data from the multiple transmit antennas to a single receive antenna at the subscriber station. Through the use of pre-correction techniques, data signals are transmitted through the multiple transmit antennas such that signals received through the multiple transmit paths can be demodulated and decoded as a single signal.

Abstract: An improved baby mattress is formed of four sections, with a two part central section including a pair of interactive cradles which provide safe and comfortable support for a sleeping infant. An upper life cradle area may be variably pressurized to produce a telescoping well which encourages placing the infant for safe sleeping on its back. A lower safety cradle is filled with strong and resilient foam rubber and serves to safely support the infant in the event of unwanted cradle deflation. An array of auxiliary support and shape retaining members serve to give the crib-sized mattresses a stable and smooth overall rectangular appearance.

Abstract: An improved method and apparatus for using parallel amplifiers to efficiently amplify an information signal are disclosed. The improved apparatus utilizes digital signal manipulation techniques in optimizing the phase of the upconverted input signals provided to each of the parallel amplifiers. The phase and amplitude of the input signals are adjusted such that the power measured at the output of a combiner is maximized as compared to the sum of the power of combiner input signals.

Abstract: A wireless telephone (102) includes a telephone transceiver (104), GPS receiver (106), and Bluetooth transceiver (108). The telephone antenna (110) is external, and the Bluetooth antenna (120) is internal. The GPS receiver (106) may be driven by its own internal antenna (326), or via a signal separator (116), (216), by either of the other antennas ((110), (120).

Abstract: Techniques for efficient allocation of channelization codes are disclosed. In one aspect, a dedicated data channel is partitioned into a primary channel and a secondary channel. The rate of the primary channel is a relatively low fixed rate. The rate of the secondary channel varies over time in accordance with the rate of the dedicated channel data. In another aspect, a channelization code indicator is transmitted in the primary channel to identify the secondary channel. In yet another aspect, more than one secondary channel may be deployed. Various other aspects are also presented. These aspects have the benefit of efficient code resource allocation, resulting in increased support for users/and or channels, as well as increased system capacity.

Abstract: Techniques for pre-correction of transmit signals are disclosed. In one aspect, a transmit antenna array configurable to generate multiple transmit beams is deployed. The parameters for configuring the antenna array are computed in response to channel estimates and a noise floor estimate made at the receiver. Information is transmitted in accordance with the multiple transmit beams, delayed as necessary, such that the multipaths may arrive time-aligned an in-phase at the receiver. In another aspect, pre-RAKE pre-correction is deployed by calculating Wiener weights. In yet another aspect, space-time diversity is deployed for calculating tap values for FIR filters used in transmission on the transmit antenna array. In yet another aspect, space only pre-correction is deployed. Various other aspects are also disclosed. These aspects have the benefit of reducing the interference experienced at a receiver, resulting in increased capacity, increased data throughput, and other system benefits.