32 results about "Null state" patented technology

Disclosed is a method for controlling an operational state of at least one subscriber stations in an OFDM / OFDMA communication system having ranging slots and ranging codes to be used for rangings. The subscriber station performing in a Null state, an initial ranging if an initial ranging request occurs, and transitioning from the Null state to an Idle state if the initial ranging is successful; transitioning to an Access state if a bandwidth request ranging request occurs in the Idle state, and performing in the Access state the bandwidth request ranging based on a random access technique; transitioning from the Access state to a Busy state if the random access-based bandwidth request ranging is successful, performing the bandwidth request ranging based on a scheduled access technique if the bandwidth request ranging request occurs in the Busy state, and transmitting data if the scheduled access-based bandwidth request ranging is successful; and transitioning to a Hold state if the data transmission is ended in the Busy state, and performing the scheduled access-based bandwidth request ranging if the bandwidth request ranging request occurs in the Hold state.

A technique is provided for facilitating secure operation of an integrated system. The technique includes passing a request for data through a data access controller incorporated within the integrated system, and selectively qualifying the request in accordance with a security state of the controller. The security state of the controller is one state of multiple possible security states, including a null state and a secured state. In the secured state, the controller replaces a standard boot code address associated with a request for boot code with a substitute boot code address. The substitute boot code address addresses an encrypted version of boot code, which is then decrypted by the controller employing a master key set held at the controller. When transitioning to the null state, the master key set is erased.

A system for determining the location of a man-made object based upon symmetry of the object comprising a receiver configured to receive radar signals comprising cross-polarized and co-polarized responses; at least one processor configured to combine the horizontal-horizontal polarimetric responses and vertical-vertical polarimetric responses to form co-polarimetric images and operate on one or both of the vertical-horizontal polarimetric responses and horizontal-vertical polarimetric responses to form cross-polarized images; the at least one processor configured to process the co-polarized and cross-polarized images to locate areas of interest containing a maximum in the co-pol image and a null state in the co-pol image indicating the potential detection of a man-made object; the at least one processor being configured to filter data using buffer regions and / or skipping of pixels in the vicinity of an area of interest. A method for detection of man-made objects is also disclosed.

The disclosed method comprises: when out of control to the software led by error upgrade on-line, the network management center recovers the opposite software in master control board to the usable or upgraded one firstly; then, it sends command to the board for upgrade forcedly; after receiving the command, the board sends rest signal to the single board and enables the upgrade control signal; the single board resets immediately to run BOOT software to decide whether the signal effective; if yes, it erasures the work area in the board memory area and sets the forced upgrade control signal on null state; then, it completes the download and storage for upgrade, and guides to run the new software. This invention can recover the out-of-control completely and immediately.

Described herein is a polarization microscope that uses spectral-encoding of the polarization state for cellular imaging. The spectral-encoded polarization microscope is both sufficiently fast for cellular imaging and is compatible with high extinction optics required to image molecular structures and assemblies. The spectral-encoded microscope allows for the polarization state of light presented to the specimen to sample discrete states over the entirety of the Poincaré sphere while simultaneously giving a null measurement of the observed cellular birefringence. Sampling over the entire Poincaré sphere allows the microscope to determine of specimen phase retardation due to both linear and circular birefringence. The spectral-encoded polarization microscope can be operated in a slightly off-null state that will improve signal-to-noise.

The invention discloses a method through which user equipment (UE) can automatically obtain normal service from a null state. The method comprises the following steps: a mobile management (MM) layer stores the parameter of the latest successful registration; when a card is invalid, the MM layer sends the parameter of a message update radio resource (RR) layer or a radio resource control (RRC) layer after receiving the message of cell reelection, thereby ensuring that the stored parameter of the latest successful registration is usable at the RR layer or the RRC layer; finally, the MM layer notifies the RR layer or the RRC layer to originate cell selection and registration flow by means of the stored parameter of the latest successful registration. The method ensures that a user can automatically obtain normal service after the UE is invalid; moreover, the method is more convenient to a user and can better meet the requirements of the user.

The invention discloses capacity discharge method and circuit which are applied to a switch power supply. The capacity discharge method includes that a detecting circuit detects voltage of one end of an X capacitor in the switch power supply to generate a first voltage signal, the first voltage signal is monitored, if the first voltage signal is kept at low-level null state within preset time, detection signals output by the detecting circuit are at high-level effective state, and thus an input end of the switch power supply is indicated as power off. Then, the discharge circuit receives detection signals so as to discharge the X capacitor after the input end of the switch power supply is powered off. The capacity discharge circuit has no need for devices such as discharge resistors, power loss of the system is reduced, no-load power consumption and standby power consumption are also reduced, and requirements for power consumption of new standards are met.

The invention relates to a system and method for safety adjustment of automatic puncture. The system comprises a null detection module, a limiting detection module and a safety control module, wherein the null detection module is used to detect whether a multi-shaft puncture mechanism stays at a null state after automatic puncture equipment is powered on; the limiting detection module is used to detect whether deflection from a set motion route appears during motion of the multi-shaft puncture mechanism; and the safety control module is used to conduct safety adjustment according to a set program when abnormities of the automatic puncture equipment are detected. According to the embodiment of the invention, based on the automatic puncture equipment, force sensing measurement equipment and an impedance measurement equipment are added on hardware, and a safety detection and emergency disposal program is added on software, namely null detection in starting, limiting detection in control of the motion of the multi-shaft puncture mechanism as well as a safety exit mechanism for occurrence of the abnormities are contained. Hence, reliability and safety of the automatic puncture equipment in work can be ensured.

The invention discloses a power battery system and a control method, and belongs the field of vehicles. The power battery system comprises a power battery module, a single battery electric quantity monitoring module, a discharge management module and a discharge module, wherein the power battery module comprises a plurality of battery modules; the single battery electric quantity monitoring module is used for monitoring the electric quantity state of each battery module, and the electric quantity state comprises a full power state, a non-full power state and a power-null state; the discharge management module is used for putting the battery modules of which the electric quantity state is changed into the full power state from the non-full power state into a to-be-discharged sequence; and the discharge module is used for allowing the battery modules in the to-be-discharged sequence to be discharged sequentially when a discharge signal is received. According to the power battery system, the service life of the battery modules can be prolonged effectively by arranging the power battery module with the battery modules and controlling the single battery module to always complete an integral charging or discharging process.

The invention discloses a double-interface encryption memory card with a USB (universal serial bus) interface and a RFID (radio-frequency identification) interface, and a management method and system of data in the double-interface encryption memory card. The management method comprises the steps that the USB interface is used for connecting with a PC (personal computer) to carry out data reading / writing, and the RFID interface is used for receiving and sending radio-frequency signal, and receiving a security command from the radio-frequency signal; the data in the card is stored after encryption; in an initialization stage, the double-interface encryption memory card generates a data key and stores the data key; in a use state, the data key in the double-interface encryption memory card is in a null state, when a first radio-frequency reading / writing device is activated in a used area, the data key is in a usable state, and the data key is used for encrypting and decrypting the data and completing the reading / writing operation; and in a destroy stage, when the double-interface encryption memory card enters a destroy area, the destroy command sent by a second radio-frequency reading / writing device is received and executed so as to destroy the stored data key. By the adoption of the scheme disclosed by the invention, the data security and data transmission speed are improved.

A push-pull driver for powering fluorescent lamps in a backlight system includes a transformner with three primary windings to realize the advantages of both a push-pull switching topology and a full-bridge switching topology. The first and the second primary windings alternately conduct currents in opposite polarities to generate an alternating current signal to power one or more lamps coupled to a secondary winding of the transformer. The third primary winding is short-circuited to preserve energy stored in the transformer in a null state when both the first and the second primary windings are not conducting.

Disclosed is a multi-jack cable adapter for multi-cable testing and alien cross-talk cable testing. The cable testing system employs the cable tester and the multi-jack cable adapter, and the adapter includes a switch matrix and a switch controller. In operation, the switch matrix and the cable tester build a plurality of signal channels with a plurality of cables for telephonic communication between the cable tester and a plurality of cables, and the switch matrix and the switch controller process the telephonic communication with the cable tester according to the command control switch matrix of the cable tester to switch between the active state and the null state on each signal channel.

Embodiments of the invention disclose a DMA (Direct Memory Access) data transmission method and apparatus, and solve the technical problem of directly influenced frame rate due to low DMA efficiency caused by the fact that the time of one frame of DMA is equal to the sum of linked list reading time, DDR image data reading time and PCI-E (PCI Express) image data sending time. The DMA data transmission method disclosed by the embodiments of the invention comprises: caching linked list data read from DDR to a preset linked list data cache region, and caching video data subjected to mode alignment processing through presetting and read from DDR to a preset video data cache region; and when the preset linked list data cache region is in a non-null state and the preset video data cache region meets a one-time burst transmission condition, sending the video data to the TX end of PCI-E in a preset mode.

The invention discloses a pulse width modulation control method. The pulse width modulation control method includes: acquiring a pulse width of a three-phase switch in a switching period; acquiring a first action time of a shoot-through state ST in the switching period; acquiring a second action time of a non-shoot-through null state in the switching period according to the pulse width and the first action time; synthesizing a three-phase pulse width modulation signal according to the switching period, the pulse width, the first action time and the second action time, wherein the shoot-through state ST and the non-shoot-through null state are at positions of a crest and a trough of a carrier wave respectively. Correspondingly, the invention further discloses a PWM (pulse width modulation) control device. Using the pulse width modulation control method and the pulse width modulation control device can directly measure crest voltage on a direct-current busbar to further control busbar voltage directly.

The invention discloses a method and device for monitoring high speed shared control channel (HS-SCCH) in a radio communication system. In the invention, current state has to be determined first, and corresponding monitoring process is carried out according to the state determined. wherein the current state is any one of a null state, an active state, a inactive state and a discontinuous receiving state, monitoring is not conducted under the null state, monitoring is conducted under the active state and the inactive state, and the discontinuous monitoring is conducted under the discontinuous receiving state according to discontinuous receiving parameters. According to the invention, the UE power consumption with low on-line requirement for a long time is lowered. On the other hand, frequently starting up an inactive timer is prevented.

The invention discloses a voice domain name resolving method for a home gateway. The method comprises the following steps: initializing an array and setting null; creating a domain name system thread; inquiring a state mechanism, judging the state mechanism inquired by a current domain name system, returning if inquiry is running, loading a domain name to be inquired if inquiry is in a null state, comparing with a domain name in a domain name system, judging whether the loaded domain name exists in the domain name system or not, and giving an inquiry failure result if the loaded domain name does not exist in the domain name system; if loaded domain name exists in the domain name system, performing domain name resolving to obtain a corresponding IP (Internet Protocol) address, loading the domain name and a corresponding IP address thereof into a corresponding array, and changing the state mechanism to inquiry success; adding the successfully-inquired domain name and the corresponding IP address thereof into a database of the domain name system. In the method, domain name addresses are resolved by creating a thread, so that waste of resources is reduced effectively, real addresses needing domain name resolving can be obtained rapidly and kept, and high efficiency, high instantaneity and high accuracy are achieved.

A system for determining the location of a man-made object based upon symmetry of the object comprising a receiver configured to receive radar signals comprising cross-polarized and co-polarized responses; at least one processor configured to combine the horizontal-horizontal polarimetric responses and vertical-vertical polarimetric responses to form co-polarimetric images and operate on one or both of the vertical-horizontal polarimetric responses and horizontal-vertical polarimetric responses to form cross-polarized images; the at least one processor configured to process the co-polarized and cross-polarized images to locate areas of interest containing a maximum in the co-pol image and a null state in the co-pol image indicating the potential detection of a man-made object; the at least one processor being configured to filter data using buffer regions and / or skipping of pixels in the vicinity of an area of interest. A method for detection of man-made objects is also disclosed.

The invention provides a starting circuit of a bias circuit, which utilizes a switch to provide an actuated signal so as to draw the bias circuit out of a null state, the switch is driven by a pulse from an external pulse provider or a combined pulse generator, the bias circuit enters a stable operating state after the pulse, and the starting circuit stops operating. Therefore, the starting circuit has the advantages of large-scale voltage supply, no standby current, short starting time, simple circuit layout, etc.

The invention discloses a power battery system and a control method, and belongs the field of vehicles. The power battery system comprises a power battery module, a single battery electric quantity monitoring module, a discharge management module and a discharge module, wherein the power battery module comprises a plurality of battery modules; the single battery electric quantity monitoring module is used for monitoring the electric quantity state of each battery module, and the electric quantity state comprises a full power state, a non-full power state and a power-null state; the discharge management module is used for putting the battery modules of which the electric quantity state is changed into the full power state from the non-full power state into a to-be-discharged sequence; and the discharge module is used for allowing the battery modules in the to-be-discharged sequence to be discharged sequentially when a discharge signal is received. According to the power battery system, the service life of the battery modules can be prolonged effectively by arranging the power battery module with the battery modules and controlling the single battery module to always complete an integral charging or discharging process.

A method (50) for correcting oscillator frequency error in GPS signal acquisition includes a first step (52) of receiving at least one broadcasted GPS signal. A next step (54) includes estimating a plurality of Doppler offsets. A next step (56) includes correlating the signal to produce a Doppler modulation for each of the plurality of Doppler estimates. A next step (58) includes calculating a magnitude separation of peak and null states of each modulation. A next step (60) includes searching the peak and null separation to finding the Doppler estimate producing the largest magnitude separation in peak and null states. The found Doppler estimate defines a frequency error estimate for the at least one broadcasted GPS signal, which will be common across all satellites.

The invention discloses a double-interface encryption memory card with a USB (universal serial bus) interface and a RFID (radio-frequency identification) interface, and a management method and system of data in the double-interface encryption memory card. The management method comprises the steps that the USB interface is used for connecting with a PC (personal computer) to carry out data reading / writing, and the RFID interface is used for receiving and sending radio-frequency signal, and receiving a security command from the radio-frequency signal; the data in the card is stored after encryption; in an initialization stage, the double-interface encryption memory card generates a data key and stores the data key; in a use state, the data key in the double-interface encryption memory card is in a null state, when a first radio-frequency reading / writing device is activated in a used area, the data key is in a usable state, and the data key is used for encrypting and decrypting the data and completing the reading / writing operation; and in a destroy stage, when the double-interface encryption memory card enters a destroy area, the destroy command sent by a second radio-frequency reading / writing device is received and executed so as to destroy the stored data key. By the adoption of the scheme disclosed by the invention, the data security and data transmission speed are improved.

The invention discloses a voice domain name resolving method for a home gateway. The method comprises the following steps: initializing an array and setting null; creating a domain name system thread; inquiring a state mechanism, judging the state mechanism inquired by a current domain name system, returning if inquiry is running, loading a domain name to be inquired if inquiry is in a null state, comparing with a domain name in a domain name system, judging whether the loaded domain name exists in the domain name system or not, and giving an inquiry failure result if the loaded domain name does not exist in the domain name system; if loaded domain name exists in the domain name system, performing domain name resolving to obtain a corresponding IP (Internet Protocol) address, loading the domain name and a corresponding IP address thereof into a corresponding array, and changing the state mechanism to inquiry success; adding the successfully-inquired domain name and the corresponding IP address thereof into a database of the domain name system. In the method, domain name addresses are resolved by creating a thread, so that waste of resources is reduced effectively, real addresses needing domain name resolving can be obtained rapidly and kept, and high efficiency, high instantaneity and high accuracy are achieved.

The invention discloses a method and device for monitoring high speed shared control channel (HS-SCCH) in a radio communication system. In the invention, current state has to be determined first, and corresponding monitoring process is carried out according to the state determined. wherein the current state is any one of a null state, an active state, a inactive state and a discontinuous receiving state, monitoring is not conducted under the null state, monitoring is conducted under the active state and the inactive state, and the discontinuous monitoring is conducted under the discontinuous receiving state according to discontinuous receiving parameters. According to the invention, the UE power consumption with low on-line requirement for a long time is lowered. On the other hand, frequently starting up an inactive timer is prevented.

The invention belongs to the auxiliary facility of production equipment in metallurgical industry and particularly relates to a failure null transition device for a hot-rolling finishing mill. The transition device comprises an upper mandrel and a lower mandrel, and is characterized in that the upper mandrel is arranged above the lower mandrel; a roller sleeve is respectively sheathed on the uppermandrel and the lower mandrel; the spindle noses of the upper mandrel and the lower mandrel are respectively arranged on a bearing; the bearings are both arranged on bearing pedestals; the bearing pedestal which is provided with the upper mandrel is fixedly installed on a bracket; the bearing pedestal which is provided with the lower mandrel is fixedly arranged on a support; the bracket is fixedly installed on the bearing pedestal which is provided with the lower mandrel, and the upper end of the upper bearing pedestal is provided with an adjusting instrument. When a roll-broken or shaft-broken failure happens to any one mill which runs in a hot-rolling production line, by replacing the mill with failure by the transition device, the roller of the mill with failure can be replaced, and only a few hours are needed for the stopping, dismantling and installation process so as to resume production and transitionally transport strip steel from one mill to the next mill when the mill with failure in running is in a null state.

The invention discloses a reminding method, a device, a storage medium and a terminal of a contact number. The method comprises the following steps: identifying the current number of a corresponding contact person being dialed by a user to obtain the current state of the current number; determining whether the current state is a null state; If the current state is a null number state, reminding the user whether the current number needs to be deleted; and ff the current state is not a null state, reminding the actual state in which the current number is not a null state. The scheme of the invention can solve the problem that users need to dial more than one number of the stored corresponding contact person one by one to confirm that the valid number is inconvenient to use, so as to achievethe effect of improving the convenience of use.