摘要:
Sound signal reception is improved by utilizing a plurality of microphones to capture sound signals which are then weighed to dynamically adjust signal quality. A first sound signal and a second sound signal are obtained from first and second microphones, respectively, where the first and second sound signals originate from one or more sound sources. A first signal characteristic (e.g., signal power, signal signal-to-noise ratio, etc.) is obtained for the first sound signal and a second signal characteristic is obtained for the second sound signal. The first and second sound signals are weighed or scaled based on their respective first and second signal characteristics. The weighed first and second sound signals are then combined to obtain an output sound signal.
摘要:
In a digital system with more than one clock source, lack of synchronization between the clock sources may cause overflow or underflow in sample buffers, also called sample slipping. Sample slipping may lead to undesirable artifacts in the processed signal due to discontinuities introduced by the addition or removal of extra samples. To smooth out discontinuities caused by sample slipping, samples are filtered to when a buffer overflow condition occurs, and the samples are interpolated to produce additional samples when a buffer underflow condition occurs. The interpolated samples may also be filtered. The filtering and interpolation operations can be readily implemented without adding significant burden to the computational complexity of a real-time digital system.
摘要:
Provided is a leak-proof lubrication system for a power device, comprising an oil supply pump inlet pipe, an oil supply pump, an oil supply pressure gauge, an oil supply pump outlet pipe, an oil supply filter, a lubricating oil, an oil storage tank, an oil return pipe, an storage tank pressure gauge, a vacuum pump intake pipe, a vacuum pump inlet air filter, a vacuum pump and a vacuum pump exhaust pipe. The system employs a negative pressure operation method in which the pressure of the lubrication system is controlled to be lower than the outside ambient pressure, which allows a small amount of air to flow from the outside to the inside of the lubrication system along with the lubricant to return to the storage tank, preventing leakage of the lubricant from connection joints. It is suitable to be used for gas turbines or other high-speed power machines.
摘要:
Enforcing a policy is described. A mapping between an IP address of a device and a user identity is identified at a first appliance, at least in part by correlating event information. The mapping is transmitted to a second appliance. A policy is applied by the second appliance to the device based at least in part on the user identity.
摘要:
A dispersion compensation fiber comprises a fiber core and cladding. The fiber core is a core layer mainly doped with germanium and having a positive relative refractive index difference. The cladding covering the fiber core comprises a trench cladding mainly doped with fluorine, an annular cladding mainly doped with germanium, a matching cladding mainly doped with fluorine, and an outermost mechanical cladding in order. Relative refractive index differences of the fiber core and the claddings are respectively: Δ1% being 1.55% to 2.20%, Δ2% being −0.55% to −0.30%, Δ3% being 0.40% to 0.65%, Δ4% being −0.20% to −0.01%, and Δ5% being 0. Radius ranges, from R1 to R5, of the fiber core and the claddings are respectively: R1 being 1.4 to 1.7 μm, R2 being 4.1 to 4.8 μm, R3 being 6.7 to 8.8 μm, R4 being 10 to 17 μm, and R5 being 38 to 63 μm.
摘要:
Techniques for identifying user names and enforcing policies are disclosed. An external user account associated with an external application request is identified. A policy is applied based on the identified external user account. One example policy is that access to the external application (via the external user account) should be blocked.
摘要:
An apparatus for a sleep state video interface of an information handling device includes a storage device storing machine-readable code and a processor executing the machine-readable code. The apparatus includes a notification module receiving a sleep notification to place an information handling device into a sleep state. The information handling device receives a video signal. The apparatus includes a sleep module entering the information handling device into the sleep state in response to the notification module receiving the sleep notification. The video signal passes through the information handling device to a display as the information handling device is in the sleep state.
摘要:
The invention provides a lever-type umbrella runner. A lever is configured on the runner; the lever is hinged with the runner; the upper end of the lever is connected with a pull rod inside the runner. The lever-type umbrella runner of the invention features simple structure, low manufacturing cost and ease and convenience in use. It is applicable to all fields that need runners, especially to parasol umbrella.
摘要:
A method analyzes event patterns in multi-dimensional data and based on this analysis of the event patterns computes a hierarchical event pattern query from another hierarchical event pattern query. The method executes the hierarchical event pattern query on the multi-dimensional data.
摘要:
Data loading with user defined functions is described in various implementations. An example system for data loading may include a structured query language (SQL) compiler to identify a call to a table valued user defined function (TVUDF) within a SQL statement that includes an insert statement; identify metadata associated with the TVUDF; validate and resolve a subclass type of the TVUDF based on the metadata and the insert statement; and generate a data loading plan to retrieve and load data from an external data source into a table of a database based on the subclass type of the TVUDF. The system may also include a data loading engine in the database to execute the data loading plan, the data loading plan including the TVUDF to retrieve data from the external data source, and load the retrieved data into the table of the database in accordance with the data loading plan.