H04L23/00

Semiconductor device and method of forming electromagnetic (EM) shielding for LC circuits

A semiconductor device has a first component. A modular interconnect structure is disposed adjacent to the first component. A first interconnect structure is formed over the first component and modular interconnect structure. A shielding layer is formed over the first component, modular interconnect structure, and first interconnect structure. The shielding layer provides protection for the enclosed semiconductor devices against EMI, RFI, or other inter-device interference, whether generated internally or from external semiconductor devices. The shielding layer is electrically connected to an external low-impedance ground point. A second component is disposed adjacent to the first component. The second component includes a passive device. An LC circuit includes the first component and second component. A semiconductor die is disposed adjacent to the first component. A conductive adhesive is disposed over the modular interconnect structure. The modular interconnect structure includes a height less than a height of the first component.

Phase detection circuit and signal recovery circuit that includes phase detection circuit
09680481 · 2017-06-13 · ·

A phase detection circuit includes: a first circuit configured to generate a first phase detection signal that indicates a result of sampling a first clock signal at a transition timing of an input data signal; a second circuit configured to generate a second phase detection signal that indicates a result of sampling a second clock signal at the transition timing of the input data signal, a phase of the second clock signal being different from a phase of the first clock signal; and a third circuit configured to generate a third phase detection signal that indicates a phase of the first clock signal with respect to the input data signal based on the first phase detection signal and the second phase detection signal.

Unwanted component reduction system
09667291 · 2017-05-30 · ·

A system is described for forming an estimate of an unwanted signal component that may be formed as a result of non-linearities in a system. The estimate is used to form a cancellation signal which is added to an input signal to reduce the influence of the unwanted component.

Circuits and methods for decoding amplitude modulated data signals from large amplitude sine wave carrier
09641369 · 2017-05-02 · ·

A digital load side transmission lighting control apparatus has at one least control gear for controlling at least one lighting source. The control gear includes a period timer to establish an inter-transition time period between each transition within each data packet frame. An inter-transition comparator is in communication with the period timer and configured to compare each of the inter-transition periods with valid inter-transition periods between each transition of the bi-phase encoded data for determining if the inter-transition periods represent valid patterns or are an error has occurred. A data extractor is configured to receive valid bi-phase encoded data from the inter-transition comparator for extracting transmitted data from within the data packet frames. A command formatter is configured to receive the extracted frame data from the data extractor for assembling the telegram bit data pattern for transfer for the subsequent processing.

Sparsity enhanced mismatch model for heterogeneous networks with doubly-selective fading channels

A deterministic mismatch model called Sparsity Enhanced Mismatch Model-Reverse discrete prolate spheroidal sequence which leads to a two stage transceiver design that outperforms precoding only strategy incorporating norm ball mismatch modeling. The inherent sparsity in the channel is brought forth by modeling the channel using a basis expansion model where discrete prolate spheroidal sequence is used as a basis. The sparsity enhanced mismatch model reverse discrete prolate spheroidal sequence disclosed herein better accounts for the channel state information estimate mismatch compared to the norm ball mismatch. The Sparsity Enhanced Mismatch Model-Reverse based transceiver system, which includes a two-stage precoder and decoder, allows the transceiver to utilize higher transmit power without violating the interference constraint placed at the victims, resulting in enhanced performance in the communication link.

OVER-THE-AIR TEST
20170093509 · 2017-03-30 ·

A system for emulating an over-the-air channel for communicating with a device under test is provided. The system comprises an anechoic chamber having N.sub.A primary probes and N.sub.B secondary probes where N.sub.A>N.sub.B. The system also comprises a dividing module for dividing N.sub.A primary impulse responses {.sub.n.sub.A} into N.sub.B subsets; and a defining module for defining N.sub.B secondary impulse responses {v.sub.n.sub.B} in terms of the primary impulse responses {.sub.n.sub.A} and a set of N.sub.B complex sequences {.sub.n.sub.B}. In the system, either the primary probes are downlink probes, the primary impulse responses are downlink impulse responses, the secondary probes are uplink probes and the secondary impulse responses are uplink impulse responses, or the primary probes are uplink probes, the primary impulse responses are uplink impulse responses, the secondary probes are downlink probes and the secondary impulse responses are downlink impulse responses.

Method, apparatus and LTE terminal for determining channel quality indicator value

A method, an apparatus and an LTE terminal for determining a CQI value are provided and belongs to the field of mobile communications. The method for determining a CQI value includes that a terminal establishes a correspondence between an effective SNR threshold and a CQI value, the terminal acquires a mean effective SNR in a downlink subframe specified bandwidth, and the terminal determines, according to the acquired mean effective SNR and the correspondence, a CQI value to be sent to a base station. The technical scheme of the disclosure is applicable to various different frequency selective fading channels and different signal transmission modes and can be implemented in a low-complexity way.

Providing service support extension data with point cloud file data

A point cloud file transmission method includes obtaining a point cloud file and extension information corresponding to the point cloud file, the point cloud file comprising point cloud data, the extension information providing information for a service. The service is implemented using the point cloud data. The method further includes indicating a correspondence between an item of the extension information and an item in the point cloud file by (i) the item in the point cloud file indicating an index of the item of the extension information or (ii) a file level location of the item of the extension information. The method further includes transmitting the point cloud file and the extension information to a receiving device, so that the receiving device performs the service using the point cloud data based on the extension information.

Signal generation method, transmission device, reception method, and reception device

A signal generation method is used in a transmission device that transmits a plurality of transmission signals from a plurality of antennas at the same frequency and at the same time, in the case where larger power change is performed on a first transmission signal than on a second transmission signal during generation process of the first transmission signal and the second transmission signal, the first transmission signal and the second transmission signal are mapped before the power change such that a minimum Euclidian distance between possible signal points for the first signal is longer than a minimum Euclidian distance between possible signal points for the second signal.

Signal generation method, transmission device, reception method, and reception device

A signal generation method is used in a transmission device that transmits a plurality of transmission signals from a plurality of antennas at the same frequency and at the same time, in the case where larger power change is performed on a first transmission signal than on a second transmission signal during generation process of the first transmission signal and the second transmission signal, the first transmission signal and the second transmission signal are mapped before the power change such that a minimum Euclidian distance between possible signal points for the first signal is longer than a minimum Euclidian distance between possible signal points for the second signal.