826 results about "Ratio value" patented technology

Methods and apparatus are provided for high-speed, low-power, high-performance channel detection. A soft output channel detector is provided that operates at a rate of 1/N and detects N bits per 1/N-rate clock cycle. The channel detector comprises a plurality, D, of MAP detectors operating in parallel, wherein each of the MAP detectors generates N/D log-likelihood ratio values per 1/N-rate clock cycle and wherein at least one of the plurality of MAP detectors constrains each of the bits. The log-likelihood ratio values can be merged to form an output sequence. A single MAP detector is also provided that comprises a forward detector for calculating forward state metrics; a backward detector for calculating backward state metrics; and a current branch detector for calculating a current branch metric, wherein at least two of the forward detector, the backward detector and the current branch detector employ different trellis structures.

Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.

A method and an apparatus for selecting an antenna from an antenna diversity array in a wireless communication system are provided. The method includes the steps of modulating an incoming signal with a spread-spectrum type modulation, measuring a signal quality value for each antenna in the antenna diversity array, and selecting an antenna from the antenna diversity array on the basis of the measured signal quality values. The step of measuring a signal quality value for each antenna may include computing peak-to-average ratio values by dividing a peak sample value by an average sample value, where the average sample value is determined by averaging all of the predetermined number of sample values for each of the plurality of incoming spreading codewords, and the peak sample value is determined by selecting the maximum of all of the predetermined number of sample values for each of the plurality of incoming spreading codewords.

There is provided a method and apparatus for monitoring oil deterioration in real time. The method includes the steps of radiating light into an oil medium and measuring light intensities at red, green and blue wavelength ranges of the light after passing through a certain thickness of the oil. A ratio of the light intensity at the red wavelength range to the light intensity at the green wavelength range is computed by using the measured light intensities. These steps are repeated to monitor a change in the above ratio value in real time of oil use. The apparatus includes a light source means for radiating light into an oil medium, a color sensing means for measuring light intensities at red, green and blue wavelength ranges of the light that has passed through a certain thickness of the oil, and a control means for computing and monitoring a ratio of the light intensity at the red wavelength range to the light intensity at the green wavelength range, using the light intensities measured by the color sensing means.

The invention discloses a video segment playback amount-based method for labeling highlights. The method comprises the following steps: obtaining actual play ratio values by a server by taking second as a time interval according to the combination of user operation information fed back by different client sides and video information; and extracting the play ratio values which are in various actual play ratio values which take second as time interval in the video and higher than or equal to the play ratio value, of extracted highlight information, preset in the server; simultaneously extending towards the former and the later time axes or extending in a single direction towards the later time axis from the time value in the time axis of the video and corresponding to a fixed point according to the fixed point in combination with a preset play time threshold value of the highlight information, wherein the fixed point is the time point of a second corresponding to the extracted actual play ratio value, and intercepting playing and extracting the corresponding highlight information when the play time threshold value is reached. The method disclosed by the invention is used for providing video clips with which a user is interested the video by taking large-data application in combination with interaction data of the user within a relatively short time after the video is on-line.

Disclosed is a complex light compensation C plate including at least two C plates representing different dispersion ratio values, respectively. The complex light compensation C plate improves a contrast characteristic of a liquid crystal display device at various viewing angles and has a broadband wavelength dispersion characteristic capable of minimizing color variation depending on various viewing angles in a black state of an LCD.

The present invention provides an urban traffic system state visualization evaluation method based on traffic flow characteristics. Said method includes the following steps: A, in specific road section collecting real-time signal waveform whose continuous time is not less than three months, forming traffic flow state parameter; B, making traffic flow state parameter undergo the process of signal filter treatment so as to obtain traffic flow sample population; C, calculating average value and standard difference of all the samples in sample population, and using ratio value of standard difference and average value as sample discrete coefficient; D, according to traffic flow multidimensional state parameter strong aggregation characteristics forming and optimizing standard characteristic-phase plane graph for evaluation; and E, placing historical data, current data and predictive data of traffic system on the standard phase graph, and visually distinguishing running state of traffic system and its change tendency.

Message delivery approaches are disclosed through which senders can guarantee that their messages are desired by intended recipients. In one embodiment, a Sender agrees with a Service Operator to pay a fine for each message that is reported as an unwanted by its Recipient. For senders that agree in advance to pay such fines, Service Operators may provide preferential message routing around “spam” filters knowing that a guarantee is in place. If the Recipient reports that the message is unwanted, the Service Operator can penalize the Sender by a fine in the agreed amount, or by modifying a bond ratio value, rating, or other experience value associated with the Sender. Estimates of the complaints expected for a Sender may be used to determine the outcomes of the tests applied by the Receiver.

A method for characterizing oxidative stress. The method includes dosing a ratio of HNE-to-DHN-protein in blood; comparing the ratio of HNE-to-DHN-protein in blood to a predetermined interval of ratio values associated with a predetermined level of oxidative stress; and classifying the oxidative stress as having reached the predetermined level if the ratio of HNE-to-DHN-protein in blood is within the predetermined interval of ratio values.

Frequency filtering of spatially modulated or “tagged” MRI data in the spatial frequency k-space domain with subsequent 2DFT to the spatial domain and pixel-by-pixel arithmetic calculations provide robust ratio values that can be subjected to inverse trigonometric functions to derive B1 maps for an MRI system.

A method and apparatus for performing motion estimation in a digital video system is disclosed. Specifically, the present invention discloses a system that quickly calculates estimated motion vectors in a very efficient manner. In one embodiment, a first multiplicand is determined by multiplying a first display time difference between a first video picture and a second video picture by a power of two scale value. This step scales up a numerator for a ratio. Next, the system determines a scaled ratio by dividing that scaled numerator by a second first display time difference between said second video picture and a third video picture. The scaled ratio is then stored calculating motion vector estimations. By storing the scaled ratio, all the estimated motion vectors can be calculated quickly with good precision since the scaled ratio saves significant bits and reducing the scale is performed by simple shifts.

A method and apparatus for performing motion estimation in a digital video system is disclosed. Specifically, the present invention discloses a system that quickly calculates estimated motion vectors in a very efficient manner. In one embodiment, a first multiplicand is determined by multiplying a first display time difference between a first video picture and a second video picture by a power of two scale value. This step scales up a numerator for a ratio. Next, the system determines a scaled ratio by dividing that scaled numerator by a second first display time difference between said second video picture and a third video picture. The scaled ratio is then stored calculating motion vector estimations. By storing the scaled ratio, all the estimated motion vectors can be calculated quickly with good precision since the scaled ratio saves significant bits and reducing the scale is performed by simple shifts.

The invention discloses a segmented linear compensated CMOS band gap reference voltage source, characterized in that it comprises IPTAT current generation part, ICTAT current generation part, low temperature segment compensation current ICL generation part and high temperature segment compensation current ICH generation part. On the basis of traditional first-order curvature compensation, it divides the whole temperature range into high, medium and low temperature segments, compensates output voltage in each temperature range respectively and makes the output voltage have multiple local extremum points in the whole temperature range to achieve the segmented compensation purpose, so as to effectively improve the temperature characteristics of output voltage reference, reduce temperature coefficients and improve accuracy of output voltage. Besides, it can change amplitude of output voltage by regulating resistor ratio value, relatively flexible to use. The whole circuit has low power consumption and occupies smaller chip area.

A method and apparatus for performing motion estimation in a digital video system is disclosed. Specifically, the present invention discloses a system that quickly calculates estimated motion vectors in a very efficient manner. In one embodiment, a first multiplicand is determined by multiplying a first display time difference between a first video picture and a second video picture by a power of two scale value. This step scales up a numerator for a ratio. Next, the system determines a scaled ratio by dividing that scaled numerator by a second first display time difference between said second video picture and a third video picture. The scaled ratio is then stored calculating motion vector estimations. By storing the scaled ratio, all the estimated motion vectors can be calculated quickly with good precision since the scaled ratio saves significant bits and reducing the scale is performed by simple shifts.

The invention discloses a web page resource recommendation method and device, relating to the field of computers. The method comprises the following steps of: calculating the ratio of the frequency a subscriber marks web page resources with labels to the total frequency the subscriber marks the web page resources, marking the subscriber as the close subscriber of a certain label when the ratio value corresponding to the label is larger than a preset threshold value, and otherwise, marking the subscriber as the remote subscriber of the label; and outputting the web page resources to the subscriber according to the corresponding recommendation list of the close subscriber and the remote subscriber. The embodiment of the invention can recommend different web page resources to different subscribers according to the different types of the subscribers, so that the recommendation of the web page resources is more accurate, timely and effective. The embodiment of the invention is favorable for subscribers to quickly and conveniently find interesting web page resources.

Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.

The invention refers to the improvement of scaling method for lens deformation parameter. The steps are: places target, shoots target image, gets the coordinate of characteristic spot, and calculates the double ratio value CR of characteristic spot, obtains the expression of Xia, Xib, Xic, Xid, Yia, Yib, Yic, Yid, calculates the deformation parameter k1,k2.

The invention discloses a moisture content control method and a moisture content control system of inlet cut tobaccos of a cut-tobacco drier and relates to the technical field of cigarette cutting. The method comprises the following steps: according to set inlet moisture content of the cut-tobacco drier and a first environment parameter set, obtaining a first predication value of loosening and re-moisturizing outlet moisture content; according to a water adding ratio value, and temperature and humidity of a loosening and re-moisturizing phase, obtaining a second predication value of the loosening and re-moisturizing outlet moisture content; judging whether the difference between the first predication value and the second predication value is in a first pre-set range or not; if not, changing the water adding ratio value; and if so, carrying out loosening and re-moisturizing treatment according to the current water adding ratio value. According to the moisture content control method and system, by accurately adjusting the water adding ratio in the loosening and re-moisturizing phase, the moisture content of the inlet cut tobaccos of the cut-tobacco drier is stabilized nearby a process set value, and the effect of stabilizing the moisture content after cut tobacco drying is realized.