Abstract: A method and system are disclosed for generating enhanced images of multiple dimensional data using a depth-buffer segmentation process. The method and system operate in a computer system modify the image by generating a reduced-dimensionality image data set from a multidimensional image by formulating a set of projection paths through image points selected from the multidimensional image, selecting an image point along each projection path, analyzing each image point to determine spatial similarities with at least one other point adjacent to the selected image point in a given dimension, and grouping the image point with the adjacent point or spatial similarities between the points is found thereby defining the data set.

Abstract: Process for the processing of image data which represent the color values of an image, to achieve optimal color reproduction of the image by an image reproduction system, especially by a photographic printer or photolab in response to the image data. In an exemplary embodiment, the image data which represent first positions in a first color space are received. The first positions are transformed into transformation positions which represent positions in a second color space; and the response of the image reproduction system to the image data is modeled with a model image reproduction system such that the model image reproduction system outputs the response as model positions which represent the color values produced by the model image reproductions system in response to the input of the image data as positions in a second color space.

Abstract: An image processing system and demosaicing method are provided to calculate estimated missing color sensor values in an image using a linear prediction from the raw color sensor value at the current pixel location. The raw image is divided into regions of sensor values, and the linear relations between color planes for each region are determined by a regression method that calculates the degree to which different color planes co-vary within each region The missing color sensor values per region are calculated as a scaled and shifted version of the raw color sensor values using linear regression coefficients determined from the local linear regression process.

Abstract: The invention provides a document segmentation method of detecting segmentation points where a topic of an input document is discontinuous before and after the point to divide the document into plural blocks.

Abstract: A method of post-processing character data from an optical character recognition (OCR) engine and apparatus to perform the method. This exemplary method includes segmenting the character data into a set of initial words. The set of initial words is word level processed to determine at least one candidate word corresponding to each initial word. The set of initial words is segmented into a set of sentences. Each sentence in the set of sentences includes a plurality of initial words and candidate words corresponding to the initial words. A sentence is selected from the set of sentences. The selected sentence is word disambiguity processed to determine a plurality of final words. A final word is selected from the at least one candidate word corresponding to a matching initial word. The plurality of final words is then assembled as post-processed OCR data.

Abstract: A method discovers patterns in unknown content of a video. The video is partitioned into sets of disjoint segments. Each set includes all frames of the video, and each set is partitioned according to a selected low-level feature of the video. The disjoint segments are grouped into corresponding sets of clusters, each cluster including similar segments. The clusters are then labeled, and association rules are identified among the labels to discover high-level patterns in the unknown content of the video.

Abstract: A system and method is described for providing an encoding scheme for a bit stream and displaying or printing the encoded bit stream. Using the encoded bit stream, a pen with a camera may capture an image of a portion of the encoded bit stream. The captured image may then be decoded to provide an indication of the location of the image in relation to the encoded bit stream. The encoding scheme includes information regarding orientation, thus making decoding easier.

Abstract: A barcode detection device is disclosed which captures an image; examines the image in a plurality of grids; obtains a profile of the image along the sides of the grids; determines the number of transitions in the profile of each side; compares the number of transitions in each adjacent pair of sides with the number of transitions in the opposing adjacent pair of sides, respectively, and identifies a potential barcode data bearing grid when the count of transitions on one pair of adjacent sides matches the count of transitions on the opposing pair of adjacent sides.

Abstract: A method is provided of processing data representing pixel colour having a luminance component and colour difference components. The data is divided into first and second data portions, the first data portion comprising the luminance components and the second data portion comprising the colour difference components. First and second instructions from a combined instruction word, and the first and second date portions are processed in parallel using first and second parallel processors within a processor architecture, the first and second parallel processors operating according to the first and second instructions, respectively. The processed first and second data portions are combined to provide processed pixel colour data. This method uses parallel processor sections to process the luminance and colour difference components. The parallel processor sections can then use instructions suited to the type of data being processed, providing an efficient method of processing the graphics data.

Abstract: The objective of the present invention is to provide a simple and accurate process for extracting an object from an image, which is used to impose a great load for an operator. According to the present invention, an image processing apparatus comprises an object extracting unit, for performing a predetermined process for image data for a position or an area that is designated and for extracting a specific object from an image, an outline part deciding unit, for selecting and authenticating an arbitrary segment of an outline obtained by the extracting unit, and an outline synthesis unit, for linking and synthesizing together the outline segments that are authenticated. Since a closed curve is formed by synthesizing the outline segments obtained by repeating the above process, and the outline of the object is thus determined, the outline segment that is extracted from the image and matches the correct outline of the object is sequentially selected and authenticated.

Abstract: A method for multiple cue integration based on a plurality of objects comprises the steps of: (a) deriving an ideal transition graph and ideal transition probability matrix from examples with known membership from the plurality of objects; (b) deriving a relationship of the plurality of objects as distance graphs and distance matrices based on a plurality of object cues; (c) integrating the distance graphs and distance matrices as a single transition probability graph and transition matrix by exponential decay; and (d) optimizing the integration of the distance graphs and distance matrices in step(c) by minimizing a distance between the ideal transition probability matrix and the transition matrix derived from cue integration in step (c), wherein the integration implicitly captures prior knowledge of cue expressiveness and effectiveness.

Abstract: An information supplying apparatus that supplies image data of omnidirectional images to at least one information processing apparatus over a network includes, a receiver for receiving viewpoint information from the at least one information processing apparatus. An encoder is provided for encoding the image data of the omnidirectional images, based on the viewpoint information received by the receiving means, such that image data of images in a second direction has a lower resolution than image data of an image in a first direction corresponding to the viewpoint information. The first direction and the second direction are different from each other. A transmitter transmits the image data of the omnidirectional images which is encoded by the encoding means to the at least one information processing apparatus.

Abstract: Methods and apparatus for encoding and decoding vide subframes (e.g., lower-resolution video) with a DVC video coder are disclosed. Although a subframe can be encoded or decoded by wholesale insertion of the subframe into a subregion of a DVC frame, the DVC coding method is largely inefficient in coding a subregion. Because each video segment comprises several staggered blocks of data from widespread locations in the DVC frame, subregion pixels become inextricably coded in a fixed-length video segment with blank pixels, defeating attempts at compression.

Abstract: In a decoding method of decoding encoded image data which has been hierarchically encoded in advance, a size of an image to be outputted is determined, and then the encoded image data is decoded up to a layer of hierarchy which is at least one layer more than a minimum number of layer/layers of hierarchy necessary to acquire an image of the determined size.

Abstract: In the ADRC processing, a picture is divided into blocks, the maximum value MAX and the minimum value MIN of the pixel value of each block are detected and DR=MAX−MIN is set as a local dynamic range of each block. The result of ADRC processing obtained by dividing subtracted values obtained by subtracting the minimum value MIN from each pixel value in the block into DR/2K is set as an object of various editing processing. Thereby, the almost same editing processing can be conducted comparing with a case where an original picture before ADRC processing is set as the object. Moreover, since the among of data as the ADRC processing result is little, a load of editing processing can be reduced comparing with the case of setting the original picture before ADRC processing as the object and video processing is performed efficiently.

Abstract: In the ADRC processing, a picture is divided into blocks, the maximum value MAX and the minimum value MIN of the pixel value of each block are detected and DR=MAX−MIN is set as a local dynamic range of each block. The result of ADRC processing obtained by dividing subtracted values obtained by subtracting th minimum value MIN from each pixel value in the block into DR/2k is set as an object of various editing processing. Thereby, the almost same editing processing can be conducted comparing with a case where an original picture before ADRC processing is set as the object. Moreover, since the among of data as the ADRC processing result is little, a load of editing processing can be reduced comparing with the case of setting the original picture before ADRC processing as the object and video processing is performed efficiently.

Abstract: A system and method for encoding a document image and finding a location based on that image are described. A document page is encoded into codes associated with various locations of the document page. The codes are assembled into a code book. Captured images may then be similarly encoded and searched against the codes in the codebook. One or more codes and associated locations may be returned, thereby providing one or more possible locations for the captured images.

Abstract: A rounding accuracy of DCT coefficients that are quantized is dynamically varied with a simple structure. As a result, an encoding noise is effectively suppressed and the picture quality is prevented from being deteriorated. DCT coefficients of which a picture signal is transformed by DCT are input to a quantizing circuit 30. The quantizing circuit 30 quantizes the DCT coefficients with a quantizer matrix and supplies the quantized DCT coefficients to a multiplying device 33 through an absolute value circuit 31. A quantizer scale value based on the generated code amount of the entire screen is converted into an invert value thereof and then supplied to a multiplying device 33. In addition, an M value designating circuit 38 designates a value M as a parameter with which a rounding accuracy of DCT coefficients that are quantized is controlled according to a quantizer scale value. An adding device 34 adds the value M to an output of the multiplying device 33.

Abstract: To acquire a high-resolution frame from a plurality of frames sampled from a video image, it is necessary to obtain a high-resolution frame with reduced picture quality degradation regardless of motion of a subject included in the frame. Because of this, between a plurality of contiguous frames FrN and FrN+1, there is estimated a correspondent relationship. Based on the correspondent relationship, the frames FrN+1 and FrN are interposed to obtain first and second interpolated frames FrH1 and FrH2. Based on the correspondent relationship, the coordinates of the frame FrN+1 are transformed, and from a correlation value with the frame FrN, there is obtained a weighting coefficient &agr;(x°, y°) that makes the weight of the first interpolated frame FrH1 greater as a correlation becomes greater. With the weighting coefficient, the first and second interpolated frames are weighted and added to acquire a synthesized frame FrG.

Abstract: To reduce the fluoroscopic noise in an image I acquired at a date t, the pixels of this image are paired with the pixels of an image I′ acquired at a date t−1. For a pixel with coordinates (x,y) of the image I, a convolution is done with a core U equivalent to a low-pass filter whose coefficients have been modified as a function of the neighborhood of the pixel with coordinates (x,y) in the image I. For the pixel paired in the image I′, a convolution is done with the core U whose coefficients have been modified as a function of the neighborhood of the pixel with coordinates (x,y) in the image I′. The result of the two convolutions is associated linearly in order to obtain a filtered value for the pixel with coordinates (x,y). These operations are repeated for each pixel of the image I.

Abstract: The invention relates to a method of computing wavelets temporal coefficients of a GOP (Group Of Pictures) the length of which is 2n. A controlled temporal transform is applied recursively generating n decomposition levels. Each decomposition level comprises the mean and the mean difference of each couple of input signals. During the last n-1 decomposition levels each decomposition level transform block is controlled by a control signal corresponding to the sum of two temporal mean differences outputted from the previous decomposition level. The corresponding temporal means of said previous decomposition level are the input signals for said transform block. When the said control signal is equal to zero the output values of said transform block is the temporal mean value and the temporal mean difference of the input signals. When the control signal is different from zero, the output signals are the said input signals.

Abstract: A first digital image is combined with a transformed first digital image to authenticate and reconstruct the first digital image. When viewed in the standard manner, the combined image appears to be the first digital image. The transformed first digital image cannot be seen. When the bits within each pixel of the combined image are reversed, i.e. the least significant bit (LSB) is exchanged with the most significant bit (MSB), and the resultant image is viewed, then the transformed first digital image is seen. In this way, the transformed first digital image can be hidden inside the noise bits of the first digital image. The method is applied to color pixels by treating each color byte independently. The transformed first digital image can be encrypted before combining with the first digital image. The transformed first digital image can be inversely transformed back to the first digital image for authentication and reconstruction.

Abstract: A method (200) is disclosed of detecting one or more patterns embedded in an image. Each pattern embedded in the image has been formed from a one-dimensional basis function. The method (200) starts by calculating (210) a projective transform of the image. A 1-D correlation is then calculated (220) between the projective transform and the basis function for a selection of angles. Finally, one or more peaks of the correlation are found (230). The position of each of the peaks provides spatial parameters of one of the one or more embedded patterns.

Abstract: A system for inspecting components is provided. The system includes a light source illuminating a component feature so as to create a specular or non-lambertian reflection off the component feature. An image sensor is positioned to receive the specular or non-lambertian reflection and to generate point brightness data and point position data, such as for a point of light reflected off the component feature. A height measurement system receives the point brightness data and the point position data and generates feature height data.

Abstract: A method for determining component misalignment in a multi-modality imaging system including a first modality unit, a second modality unit, and a table, includes imaging an object with the first modality unit to generate a first image, imaging the object with the second modality unit to generate a second image, and determining a table alignment status using the first and second images.

Abstract: The present disclosure relates to a method for automatically scaling an image, comprising initially scanning an original image at an initial scanning resolution, detecting the relative positions of lateral edges of the original image, determining the width of the original image based upon the positions of the lateral edges, making an initial size presumption of the original image based upon the determined width, making a first scanning resolution determination based upon the initial size presumption, and continuing scanning of the original image based upon the first scanning resolution determination.

Abstract: Image interpolation is becoming an increasingly important topic in digital image processing, especially as consumer digital photography is becoming ever more popular. From enlarging consumer images to creating large artistic prints, interpolation is at the heart of it all. This invention present a new method for image interpolation, which produces high quality results, yet it's speed is comparable to polynomial interpolation (i.e. cubic interpolation).

Abstract: Disclosed is an image acquisition workstation including a multiple examination mode. In the multiple examination mode, a user selects an anatomical view or procedure prior to acquiring data. When the image data is acquired, the acquired data is stored in a data structure related to the selected procedure or anatomical view. As the user selects a procedure or anatomical view prior to each data acquisition, the image acquisitions can be acquired in any order.

Abstract: A system in which various feature values possessed by a multimedia object are used to search for a similar object comprises a feature value calculation section configured to calculate one or more types of feature values from the multimedia object which is registered. The system further comprises a category setting section configured to set a category, which is based on the feature value calculated by the feature value calculation section, on a database storing the multimedia object. Further, the system comprises a registration section configured to associate with the multimedia object which is registered, the feature value calculated by the feature value calculation section and the category set by the category setting section and to register the multimedia object, the feature value, and the category into the database.

Abstract: Changing pixel density in the longitudinal direction of stripe electrodes (a sub-scanning direction) is enabled in a method and apparatus for reading out images from an optical readout type solid state detector equipped with stripe electrodes. A sampling rate of an image signal obtaining means is kept fixed. A readout light scanning means irradiates readout light onto the solid state detector. A pixel density changing means changes a scanning speed of the readout light in the longitudinal direction of the stripe electrodes (the sub-scanning direction), corresponding to the pixel density to be read out.

Abstract: A trash bag incorporating a mouth securing system for securing the bag to a receptacle. The invention utilizes elastic strands, or alternatively elastic bands, adhesively attached to a trash bag and extending along the mouth of the bag. The elastic strands are attached to the bag while the strands are stretched. When the strands are allowed to return to their unstretched state, the bag gathers along the strands thereby providing a stretchable region along the mouth of the bag. The bag is configured so that when the strands are unstretched, the bag mouth is smaller than the receptacle opening, but when the strands are stretched, the bag mouth is larger than the opening. The bag is placed in the receptacle, the mouth stretched and placed over the receptacle opening. The elastic strands then retract creating a restoring force that secures the bag to the receptacle.

Abstract: A reclosable zipper closure and slider device for use with packages to open and close a pair of mating closure profiles. The closure profiles of the zipper closure include a male closure profile having a first interlocking member that is received by at least one second interlocking member formed on a female closure profile. The male closure profile further includes a sealing protrusion that is received within a mating sealing recess to provide a liquid tight seal between the two closure profiles. The slider device includes a plow member that extends past the first interlocking member when the slider device is installed on the zipper closure. Each of the closure profiles includes a spring member that contacts the top, inner surface of the slider device to provide a resilient, flexible structure to aid in installation of the slider device on the zipper closure.

Abstract: Packaging for receiving liquid, pasty, powdery, granular or solid material having tear-open means and sealed edges and made of a foil-shaped composite material. The foil-shaped composite material has multiple layers. At least one layer of the composite material does not have weakened areas. At least one layer of the composite material has weakened areas located in the packaging at least partly in the area of the filling space. The weakened areas are preferably a plurality of parallel individual cuts.

Abstract: A machine tool is provided in which a movable member can be moved in an optimum state according to an axial traverse mode. A vertical machining center as the machine tool includes a column provided upright on a bed, a spindle head supported on a front face of the column, a saddle provided in front of the column on the bed, and a table provided on the saddle. The saddle and the table are respectively guided in their movement directions by hydrostatic slideways. When the saddle and the table are moved in a so-called cutting feed mode, pressurized oil is automatically supplied to the respective hydrostatic slideways at a lower pressure. When the saddle and the table are moved in a so-called rapid traverse mode, the pressurized oil is automatically supplied to the respective hydrostatic slideways at a higher pressure.

Abstract: A rolling guide apparatus includes a race shaft on which a rolling element rolling surface is formed in a longitudinal direction thereof, and a sliding table having an endless circulation passage. The endless circulation passage includes a load rolling surface corresponding to the rolling element rolling surface. Plural rolling elements are housed in the endless circulation passage. The sliding table has a sliding table main unit and side covers attached to respective ends of the sliding table main unit. The sliding table main unit has a load rolling surface section having the load rolling surface, and a main body section. The load rolling surface section is made from engineering ceramic. The main body section is made from machinable ceramic.

Abstract: The invention relates to a pivot bearing insert for a bearing body (1) consisting of two bearing parts (2, 3) which can pivot about a pivot axis (5) and between which the pivot bearing insert (6) is located. The invention is characterized in that the bearing insert consists of two bearing bushes (7) which slide into each other and which are provided with bearing surfaces (9) which slide into each other and outer surfaces which face towards the respective bearing part (2, 3). The bearing surfaces (9) which slide into each other are smooth and free of play, while the outer surfaces are rough and are solidly connected to the respective bearing part (2, 3). A pivot bearing insert (6) of this type is simple to produce and is well protected against wear and tear. The invention also relates to a bearing produced with at least one pivot bearing insert (6) of this type.

Abstract: Bearing/hub group (1) with a sensor (8) for vehicle wheels, the group (1) presenting at least one rolling race which can revolve around a rotation axis A: a fixed rolling race (4) which is arranged outside the revolving rolling race (3) in a position which is coaxial to the revolving rolling race (3) itself and which is provided with a support flange (7) which projects towards the outside; and a sensor (8) which is mounted on the fixed revolving race (4) being made of different materials, and being connected to each other by an interface element (9) which is integral with the flange (7), and by two axial blocking elements (10) which are integral with the fixed rolling race (4) and which abut the interface element (9).

Abstract: A wheel bearing includes a sealing device 5 positioned between inner and outer members 1 and 2. This sealing device 5 includes an elastic member 14, which eventually forms an encoder grid and is provided on a first annular sealing plate 11. A second annular sealing plate 12 is provided with sealing lips 16a to 16c. An engagement 18 between a cylindrical wall 11a of the first annular sealing plate 11 and the inner member 1 is provided with an elastic member 20 made of a material dissimilar to that for the elastic material 14. This elastic member 20 may be a rubber coated layer, resin paint layer, a thin film of adhesive material or a ring-shaped rubber member. Thereby, any possible ingress of water across an engagement surface of the annular sealing plate is prevented, accompanied by increase of the lifetime of the bearing, with no problem associated with separation and displacement of the annular sealing plates. The magnetic flux density can also be easily secured.

Abstract: An optical fiber-based device exhibiting tunable birefringence utilizes a section of fiber including an optically nonlinear core region (i.e., doped with a material such as vanadium or erbium), where the fiber is configured to exhibit circular asymmetry and thus introduce birefringence into the fiber. The circular asymmetry may be accomplished by depositing the nonlinear core material in an asymmetric pattern or by launching the pump signal into an asymmetric mode of the fiber waveguide (i.e., an LP[1,m] mode). Polarization control can be generated by such a device through controlling the intensity of an input optical pump signal, since the pump signal intensity has been found to control the birefringence of a circularly asymmetric fiber waveguide.

Abstract: A low-cost circulator used in fiber optic networks to accomplish bi-directional communication along a single fiber optic cable. The circulator has three ports, namely an input port, an output port and a bi-directional network port. The circulator core is constructed such that when light with a specific polarization is input into the input port, it is bent into the bi-directional network port where it can be propagated to the fiber optic network. Light input from the bi-directional network port can be any state of polarization, and it passes through the circulator core to the output port.

Abstract: A fiber optic probe device having a sampling end positionable over optical fibers is provided. The sleeve could be releasably attached to the fiber optic probe device. The sampling end can be discarded after use, or re-used. A sample chamber including a reflective surface can be formed at the distal end of the sampling end.

Abstract: The present invention is for a fiber optic flow cell. The flow cell comprises a substrate having at least one sample channel and at least one optical fiber channel holder. At least one optical fiber is disposed within each optical fiber channel holder. Each optical fiber has at least one grating wherein each grating is in contact with each sample channel, defining a sensing area. At least one sample port is positioned in an operable relationship to at least one sample channel. Alternatively, at least one sample outlet is positioned in an operable relationship to at least one sample channel. The flow cell may be of a modular design providing a flow cell kit that contains pieces that may be assembled to form custom-made flow cells. The flow cell is used for conducting measurement studies on a sample.

Abstract: A terminal (104) is connected to a communication link (102) comprising a ribbon fiber (110) for communication in two directions over pairs of fiber in the ribbon. For each incoming fiber (106) in the ribbon fiber a receiver (112) is connected to an amplifier/detector (114) which emits detection signals on line (117). The detection signals indicate that there is sufficient optical power in the corresponding incoming fibers and are supplied via gates (124) to control units (122). These control whether electric signals incoming on lines (120) are to be conveyed further to transmitters (118) for being sent on the outgoing fibers (108). A channel selector unit (126) delivers selector signals to the gates so that when insufficient optical power exists in an incoming fiber the corresponding transmitter is only permitted to transmit during short repeated periods and is shut off in between.

Abstract: The present invention generally relates to optical communication systems, and more particularly, to an apparatus combining microelectromechanical systems (MEMS) elements and optical wavelength division multiplexing/demultiplexing (WDM) elements for optical wavelength selective add/drop application. Wherein, optical fiber arrays or optical planar waveguide arrays are used as the input terminal and the output terminal of multiple optical signals. Moreover, 1×N one-dimensional micro-mirror arrays manufactured by using the MEMS technology are applied to change the transmitting directions of the optical signal of each channel between the input terminals and the output terminals, thus, it achieves the purpose of switching the optical signals from one channel of input terminals to another corresponding channel of output terminals.

Abstract: A planar 2×2 switch is provided for controllably coupling optical channels, the switch has a reflector which is movable between a first and a second position. The reflector in the first position is disposed such that it reflects the optical signal into the second output channel. The optical signal from first input channel is coupled into second output fiber. The optical signal from second input fiber is coupled into first output fiber. The reflector in the second position is disposed such that the input optical signal propagates to a second reflector and is reflected and refocused into the output fiber. The reflection direction from the second reflector introduces a double reflection by utilizing two planar reflectors. The optical signal from first input channel is reflected into first output channel. The optical signal from second input channel will be coupled into second output channel.

Abstract: An optical module controls its output characteristics electrically and an optical switch constitutes the optical module. An optical waveguide circuit (PLC) and an electronic circuit (IC) for driving the PLC are mounted on the same substrate. The IC is composed of a bare chip to be molded afterward. Wiring of the IC is grouped and integrated on the PLC substrate to achieve higher density and miniaturization of the optical module.

Abstract: A first embodiment of the present invention provides a dense wavelength division multiplexer which has a planar array of input optical channels, each channel capable of receiving an optical signal. Coupled to this planar array of input channels is a first waveguide concentrator which facilitates the reduction of the spacing between the cores of the input optical channels. A first collimating provides means for transforming the optical signals into a collimated beam. A wavelength dependent element is disposed proximate the first collimating means. A second collimating means refocuses the collimated beam into an optical channel in a second waveguide concentrator, which facilitates the expansion of the spacing between the cores of the output channels, and ultimately to an array of output optical channels.

Abstract: This invention eliminates the lens/prism assemblies and the multiple pickup fibers that must be multiply lensed to a detector to get sufficient signal strength for the system to work. This invention also compensates for some of the rapid rise and fall time of the present system. A single pick-up, either a fiber or a photodiode, is placed at the end of a waveguide. A lens or lens system is used to focus a single optical signal on to the fiber face or the photodiode active area. Various light injection techniques, such as fibers, fiber/lens assemblies, lensed VCEL, lasers, or LEDs can be utilized because of the location in the system.

Abstract: A light collector for use with an illumination system, particularly an automotive interior illumination system. The light collector includes several waveguides capable of conducting light through internal reflection with the waveguides being arranged in a stacked configuration. Each waveguide includes an angled input surface at least some of which are oriented at different angles. With this arrangement, light from a single light source can be collected and routed to several locations.

Abstract: A method and device are provided for the regeneration of optical signals, including one or more devices that are capable of regenerating various optical signals received by the device. The device includes a system for determining the quality of the received optical signal and the signal regeneration devices regenerate only those signals for which the quality detection system has detected a poor signal quality.