摘要:
In a synchronizing system, a CRC bit end judging circuit judges an end of a CRC bit of the demodulated signal from the demodulating circuit to produce a CRC bit end signal. A RSSI detecting circuit detects a RSSI level of the received signal to produce a RSSI level signal. An edge detecting circuit compares the RSSI level with a predetermined threshold level to produce a level compared result signal when the RSSI level is greater than the predetermined threshold level. The edge detecting circuit masks, in a predetermined time interval, the level compared result signal in response to both of the CRC bit end signal and the level compared result signal. The edge detecting circuit produces a trigger signal in response to the level compared result signal after the predetermined time interval. A bit synchronous circuit produces, in response to the trigger signal, the bit synchronous signal. A bit synchronous correcting circuit corrects the bit synchronous signal to produce and supply a bit synchronous correct signal to the demodulating circuit.
摘要:
A vehicular lighting assembly with a reflection mirror formed of a BMC resin is provided which prevents glass fiber in the resin from separating and flying away when the direction of illumination is changed for aiming, which can result in degradation in appearance of the reflector or occurrence of glare. The vehicular lighting assembly can be configured such that a high-beam reflector and a low-beam lighting assembly attachment are formed of a plastic member made of the BMC resin as an integrated lighting assembly holder portion. The low-beam lighting assembly attachment of the lighting assembly holder portion can include a low-beam reflector, ball joints, and an adjusting nut attachment engaged with an adjusting screw, so that it can be aimed. The ball joints and the adjusting nut attachment are formed at their respective positions on an integrated metallic member so that they can be attached as an aiming unit to the low-beam lighting assembly attachment.
摘要:
In a radio base station of a TDMA communications system, an occupied time slot is discriminated from an idle time slot in a frame to produce a discrimination signal. A power control signal for a receiver is switched between a first state and a second state in time slots depending on the discrimination signal. The power control signal is switched to the first state at timing of the occupied time slot and to the second state at timing of the idle time slot.
摘要:
A demodulator and a demodulating method for a mobile phone are provided. In particular, the present invention can simultaneously perform operation of improving the demodulation error rate caused by such as noise and external feedback loop operation being correction after detected, and can reduce the current consumption by restraining the increase of the process time at the simultaneous operation with an external correction circuit after detected, and can improve the CN ratio (ratio between carrier power and noise power). The present invention provides a received error rate improving means which improves the received error rate by weighting for differences at symbols before and after a symbol to be demodulated at the present time and applying feedback for symbols, a weighting means for applying weighting for correction values after detected of external another loop, a deciding the order of priority means for deciding the order of priority for plural correction values, and an adapting itself to various radio wave environment and the kinds of noise by using the weighting means and the deciding the order of priority means.
摘要:
Disclosed is a delay detection demodulation system which has: a plurality of receiving systems; a plurality of instantaneous phase detecting circuits for detecting an instantaneous phase from the output of each of the plurality of receiving systems; a plurality of phase difference operating circuits for determining a phase difference in one symbol section from the output of each of the plurality of instantaneous phase detecting circuits; a combining circuit for combining the outputs of the plurality of operating circuits; a delay detection circuit for conducting error diffusion type delay detection after the combining of the combining circuit; and a demodulation logical circuit for conducting demodulation logical operation.
摘要:
A vehicular lighting assembly with a reflection mirror formed of a BMC resin is provided which prevents glass fiber in the resin from separating and flying away when the direction of illumination is changed for aiming, which can result in degradation in appearance of the reflector or occurrence of glare. The vehicular lighting assembly can be configured such that a high-beam reflector and a low-beam lighting assembly attachment are formed of a plastic member made of the BMC resin as an integrated lighting assembly holder portion. The low-beam lighting assembly attachment of the lighting assembly holder portion can include a low-beam reflector, ball joints, and an adjusting nut attachment engaged with an adjusting screw, so that it can be aimed. The ball joints and the adjusting nut attachment are formed at their respective positions on an integrated metallic member so that they can be attached as an aiming unit to the low-beam lighting assembly attachment.
摘要:
A delayed detection MRC diversity circuit which does not adjust synchronization in every reception branch independently having a simple circuit constitution and superior receiving characteristics. The delayed detection MRC diversity circuit is composed of a comparison circuit for selecting a reception branch with maximum RSSI, a selector, a base band circuit such as synchronous circuit and so forth for generating a regenerative clock while adjusting bit-synchronization in terms of the reception branch with the maximum RSSI, and a MRC diversity circuit section for composing using the regenerative clock.
摘要:
A cross circuit comprises a lattice structure formed on a single layer of a multilayer printed circuit, the lattice structure having an arrangement of nodes consisting of two input nodes, two output nodes, a center node and four other nodes which are connected by quarter-wavelength lines. An input node is connected to both a first node and a second node by a quarter-wavelength line, and the other input node is connected to both the first node and a third node by a quarter-wavelength line. Similarly, an output node is connected to both the third node and a fourth node, the other output node to both the fourth node and the second node, the center node to the four nodes, by quarter-wavelength lines, respectively. A first input signal of a predetermined frequency applied to the first input node appears on only the first output node, and the second input signal of the same frequency applied to the second input node appears on only the second output node.