4 results about "International telecommunication" patented technology

On the basis of the traditional thermal injection method for preparing CdSe quantum dots and a centrifugal separation process, efficient preparation of pure red light and pure green light CdSe quantum dots can be synchronously realized by accurately regulating and controlling reaction parameters and a purification process, the photoluminescence (PL) peaks of the product respectively meet the requirements of red and green light wavebands in the international telecommunications alliance (ITU) BT.2020 standard, and the purity of the CdSe quantum dots is greatly improved. And a core luminescent material support is provided for a Micro LED ink-jet printing technology.

This invention provides a billing and settlement audit system, method, electronic device, and storage medium for telecom operators, belonging to the field of communication technology. It includes: a signaling acquisition module receiving raw signaling data packets sent by a signaling transfer point and sending them to a signaling parsing module; the signaling parsing module decoding the raw signaling data packets based on the SS7 protocol to obtain a target message; extending service attributes based on the target message to obtain standardized signaling records; and sending these records to an audit processing module; the audit processing module comparing the standardized signaling records with the billing records to be verified provided by the operator to generate a settlement audit result. This invention, by parsing the underlying raw signaling of the signaling transfer point to generate standardized signaling records and comparing these records with the operator's call detail records (CDRs), establishes a third-party verification mechanism. This effectively identifies and resolves inconsistencies in cross-border billing data, improving the accuracy of settlements between international telecom operators.

The invention discloses an antenna unit supporting dual-frequency satellite communication, an antenna assembly and terminal equipment, and relates to the technical field of satellite communication. According to the technical key points, through the design of a top-layer metal ring structure and two bottom-layer dipole metal branches, a single feed unit can cover S-band satellite communication uplink and downlink bands divided by the international telecommunications alliance and expand C-band satellite communication at the same time, and the size of the antenna is smaller, so that the antenna is particularly suitable for miniaturized terminal equipment. The problem that the performance and the size of an existing antenna do not meet the application requirements of terminal equipment is solved.

A multi-octave antenna element with a multi-octave frequency range simultaneously with a wide FOV. The multi-octave antenna element may be used in an array with other antenna elements, and may operate across with a wide element beamwidth in the 3 GHz to 11 GHz Ultra-Wideband (UW) frequency spectra designated by the Federal Communications Commission (FCC) and the International Telecommunication Union (ITU) for unlicensed, low power, communication. The antenna is scalable to any other 3:1 frequency band desired.