摘要:
A pattern recognition scheme using probabilistic models that are capable of reducing a calculation cost for the output probability while improving a recognition performance even when a number of mixture component distributions of respective states is small, by arranging distributions with low calculation cost and high expressive power as the mixture component distribution. In this pattern recognition scheme, a probability of each probabilistic model expressing features of each recognition category with respect to each input feature vector derived from each input signal is calculated, where the probabilistic model represents a feature parameter subspace in which feature vectors of each recognition category exist and the feature parameter subspace is expressed by using mixture distributions of one-dimensional discrete distributions with arbitrary distribution shapes which are arranged in respective dimensions. Then, a recognition category expressed by a probabilistic model with a highest probability among a plurality of probabilistic models is outputted as a recognition result.
摘要:
A model adaptation scheme in the pattern recognition, which is capable of realizing a fast, real time model adaptation and improving the recognition performance. This model adaptation scheme determines a change in a parameter expressing a condition of pattern recognition and probabilistic model training between an initial condition at a time of acquiring training data used in obtaining a model parameter of each probabilistic model and a current condition at a time of actual recognition. Then, the probabilistic models are adapted by obtaining a model parameter after a condition change by updating a model parameter before a condition change according to the determined change, when the initial condition and the current condition are mismatching. The adaptation processing uses a Taylor expansion expressing a change in the model parameter in terms of a change in the parameter expressing the condition.
摘要:
In an alerting device for a pager, when a call with a message is received within a predetermined period of time of reception of an initial reception of a call including a message identical to that of the received message, the device conducts an alerting operation to help the user of the pager easily recognize the call. After the predetermined period of time, the device performs an ordinary notification to thereby minimize the current consumption. When a radio section receives a signal including data which matches an address assigned to the pager, a time counter initiates measuring the predetermined period of time and a decoder stores a message obtained from the signal in an RAM. When a next message is received, the decoder compares the received message with the stored one. When "matching" occurs between the messages, the decoder drives a loudspeaker with a large volume or a vibration motor with an increased amplitude when the time counter is measuring the predetermined period of time. After lapse of the predetermined period of time, the decoder drives the loudspeaker with an ordinary volume or a vibration motor with a usual amplitude.
摘要:
There is provided a nonvolatile semiconductor memory device which has a floating gate electrode and writes data by injecting electrons into the floating gate electrode by applying a voltage to a control gate electrode and erases the data by extracting the electrons from the floating gate electrode. The nonvolatile semiconductor memory device which includes a plurality of word lines, a plurality of bit lines intersecting with the plurality of word lines, and a plurality of memory elements each of which is connected to a word line and a bit line at a location where the word line and the bit line are intersected with each other, comprises at least one monitor bit line which intersects with the word lines, and a plurality of monitor elements which are connected to the monitor bit line and the plurality of word lines at locations where the monitor bit line and the plurality of word lines are intersected with each other.
摘要:
A capillary electrophoresis system comprising a plurality of capillaries filled with a migration medium in which samples to which fluorephore labels are added migrate, a light source providing an excitation light exciting the fluorephore labels, a photo detector detecting a fluorescence radiated from the fluorephore labels, and light focusing means placed between the plurality of capillaries to which the excitation light is irradiated. The parts of the plurality of capillaries to which the excitation light is irradiated and the light focusing means are arranged in a plane shape. The excitation light is irradiated through the plurality of capillaries and the light focusing means, the capillaries and light focusing means alternatively placed in the parts where an excitation light is irradiated. The light focusing means consisting of cylindrical rod lenses. The axis of the cylindrical rod lenses is placed substantially parallel with the capillaries, which can detect the fluorescence from samples by irradiating a plurality of capillaries substantially at the same time in a batch without mechanical scanning of a plurality of capillaries or without optical scanning of a light beam, providing a highly sensitive detection of samples.
摘要:
A wireless computer network communication system for use in an environment in which plural groups can perform network communication at the same time. A channel controller receives a requirement of starting network communication from a computer, controls a wireless channel sensor, and detects a received signal. The wireless channel detector detects which wireless channel is employed by one or more other networks and the channel controller determines the wireless channel to be employed by its own group and also controls the transceiver. The computer starts the network communication through a network controller. The network controller controls the transceiver for transmitting and receiving data by use of the wireless channel, and the same further controls the transmitting/receiving of the requirements and the data from the computer.
摘要:
A capillary array electrophoresis system by which measurement is conducted using a large number of capillaries. The electrophoresis system includes a plurality of capillary array sheets stacked one on top of another wherein end portions of the capillaries at a detection region are arranged two-dimensionally in such a manner as to elute two-dimensionally a sample from the distal end of each capillary. Excitation light is applied to the sample eluted into a buffer solution, and a two-dimensional fluorescent image is picked up by a detector.
摘要:
A dynamic-image displaying workstation provided with a display device for displaying an image, a video signal processing circuit for outputting dynamic-image data representing a dynamic image corresponding to a video signal, a first dual port memory for receiving and storing the dynamic-image data outputted from the video signal processing circuit, a second dual port memory for storing data representing pixels of an image to be displayed by the display device, and a third dual port memory for storing data representing a window area. The window area is an area of a window, to which the dynamic-image belongs, and is not covered by any other windows. The workstation is further provided with a fourth dual port memory for storing data representing a dynamic-image display effective area corresponding to the dynamic image represented by the dynamic-image stored in the first dual port memory, a data selector for receiving data read from the first dual port memory at a first input terminal thereof, and data read from the second dual port memory at a second input terminal thereof, for selecting one of the third and fourth dual port memories and receiving data read from the selected dual port memory at a third input terminal thereof, for selecting the data received at the first input terminal thereof if the data read from the third dual port memory is the data representing the window area, and the data read from the third dual port memory is the data representing the dynamic-image display effective area, for selecting the data received at the second input terminal thereof and for outputting a signal representing the selected data to the display device.
摘要:
Pixel data is selected from among first and second dynamic-image memories (DI1, DI2) and a static-memory (SI). In the invention, (a) first and second window area memories (WA1, WA2) for designating shapes and sizes of windows to which video dynamic-images are assigned respectively, (b) first and second dynamic-image area memories (DA1, DA2) for designating memory locations of data stored in both the dynamic-image memories, and (c) a priority control register for designating which video dynamic-image should be displayed in front when video dynamic-images overlap with each other are provided, whereby display for every pixel is executed according to a logical AND value of read-out data from WA1 and read-out data from DA1, a logical AND value of read-out data from WA2 and read-out data from DA2, and read-out data from the priority control register. Thus two video dynamicimages assigned to their respective windows are simultaneously displayed while subjecting them to overlap control, and special techniques including auto-zooming can be accomplished in real time.
摘要:
A signal detecting apparatus is to obtain hysteresis characteristic at a constant ratio regardless of signal amplitude fluctuations by supplying the threshold level adjusting signal corresponding to the input signal amplitude to the comparison circuit. The threshold value setting signal and the hysteresis adjusting signal is supplied to a comparison circuit through an amplifier and a hysteresis adjusting means having the identical characteristic with the peak hold circuit to set a threshold value and a hysteresis range. Therefore even in the case where the operating characteristic of the amplifier and the peak hold circuit for detecting the peak level of signal amplitude fluctuate, the threshold value and the hysteresis range fluctuation corresponding to the fluctuation. As a result, there can not need the adjustment for resetting the operating characteristic, the threshold value and the hysteresis range in each circuit and thus the time and labor required for adjustment can be further saved.