摘要:
An insulation displacement connection (IDC) connector assembly includes an IDC connector and external cables. The cables are inserted in the IDC connector through passageways disposed in a surface of the IDC-connector to be terminated to the IDC connector. A positioning recess is defined in the top surface of the IDC connector corresponding to each cable and each communicates with the corresponding passageway and is exposed to surfaces adjacent to the surface mentioned above.
摘要:
In one example, a semiconductor die includes multi-standard, multi-channel expandable television/satellite receiver that can be flexibly implemented in a number of different configurations to enable incorporation into a plurality of different systems. The semiconductor die may include multiple tuners to receive and tune a terrestrial radio frequency (RF) signal and a satellite RF signal. These tuners may include different frequency synthesizers including voltage controlled oscillators (VCOs) to generate VCO signals at different frequencies, mixers to downconvert the RF signals to baseband signals using the VCO signals. In an implementation, the semiconductor die may further include shared circuitry coupled to the tuners to digitize, process and demodulate the baseband signals.
摘要:
A negative group delay circuit comprising a negative group delay component, also comprising a circulator with three ports, further comprising a first resonator, with the negative group delay component arranged between an input port of the negative group delay circuit and a first port in the circulator. The first resonator is arranged between a second port of the circulator and a first reflection amplifier, so that signals reflected from the first reflection amplifier to the second port of the circulator through the first resonator are emitted at the third port of the circulator. The third port is arranged to be used as an output port of the negative group delay circuit.
摘要:
A circuit for down-converting an RF signal to a baseband signal includes a trans-admittance amplifier adapted to receive the RF signal and generate in response a pair of differential current signals. The circuit further includes a trans-impedance amplifier having at least four mixers and at least four linear amplifiers. The four mixers frequency down-convert the pair of differential current signals to generate four pairs of differential baseband current signals, wherein each pair of the differential baseband current signals has a different phase and is associated with each of the linear amplifiers. Additionally, the circuit includes a summing block that generates an in-phase signal using a first weighted sum of the four different baseband current signals and a quadrature signal using a second weighted sum of the four different baseband current signals. The circuit further includes an analog-to-digital converter for converting the in-phase and quadrature signals to respective digital representations.
摘要:
The present invention discloses a video communication method and system, wherein, during an audio conversation between a calling party and a called party, an IMRS (Integrated Media Resource Server) plays a video to the calling party or the called party; or when a calling party initiates a video phone call request to a called party which does not support video phone call, an audio channel is established between the calling party and the called party and a video channel is established between the calling party and an IMRS, and when an audio conversation is established between the calling party and the called party, the IMRS plays video to the calling party; or when an audio conversation and a video conversation are established between a calling party and a called party, one party replaces its video with that played to the other party by the IMRS, therefore capabilities of developing new communication services are improved.
摘要:
A media flow bridging device includes a control module for receiving control message, performing media negotiation and controlling service process; and an RTP module connected with the control module, for processing RTP protocols and transferring media flows. A system for media service includes: a control device for processing signaling and controlling service process; a media resource device connected with the control device, for providing media resource; and a media flow bridging device connected with the control device and the media resource device, wherein the media resource device transfers media flow to or from a device exterior to the system via the media flow bridging device. The invention can achieve functions such as operator quality control, automatic manual service switch, automatic service switch and etc. in a broadband network if media flows are exchanged between a user terminal and a resource device point-to-point through RTP directly in the broadband network.
摘要:
The present invention relates to a hairbrush with a plurality of filaments which is formulated by a mixture of thermo-sensitive color-changing powder and plastic materials, and the color of which varies with temperature, and the method of manufacturing such thermochromic filaments. The hairbrush comprises a handle, a head which has a number of pre-set filament holes on its surface and is attached to the handle by any convenient means, and a plurality of filaments which is formulated by extrusion process from plastic material of 98% to 94% by weight plus a mixture of 2% to 6% by weight comprising melamine plastics of 6%, latent dye of 4.5%, fixing agent of 10%, fatty acid of 0.5% and metallic oxide of 79% by weight and is attached to the filament holes by any convenient means.
摘要:
An interleaver and method of interleaving operate on data represented in a sequence of symbols to produce an interleaved sequence of symbols. The interleaver performs intra-block and inter-block permutations on the sequence of symbols. An encoder and method of encoding operate on data represented in a source sequence of symbols. The source sequence of symbols is encoded into a first sequence of codewords and interleaved using intra-block and inter-block permutations to produce a sequence of interleaved symbols. The sequence of interleaved symbols is encoded into a second sequence of codewords. A decoder and method of decoding operate on data represented in a sequence of received symbols. The sequence of received symbols comprises a formatted copy of the source sequence of symbols and the first and the second sequence of codewords.