Abstract: The invention relates to an automatic beverage frother. The beverage frother includes a lower housing assembly having a motor coupled to a gear train. The gear train may be removeably coupled to an upper paddle group and a lower paddle group disposed within a container. Each paddle group rotates about the longitudinal axis of the container in opposite directions. Within each paddle group is at least one paddle where each paddle is formed of a frame having mesh disposed within the frame. Other embodiments are disclosed.

Abstract: A magnetic induction drive for a rotatable driven member in a sealed housing, in particular, a shaft-mounted blade in a blender cup, uses a comparatively thin circular plate of a magnetizable material with circumferentially arrayed poles secured within the housing to the shaft. A brushless d.c. motor in a base separate from the housing has a rotor formed as an array of pie-shaped permanent magnet regions that interact with an electronically controlled, rotating electromagnetic field produced by a ring of stator coils. A second such permanent magnet is coupled to rotate coaxially and in unison with the rotor, with poles of opposite polarity aligned and adjacent one another. A steel disc is sandwiched between and bonded to the rotor and the second permanent magnet. The magnetic field (lines of flux) of the second magnet extends axially away from the rotor to induce magnetic poles of opposite polarity in the drive plate.

Abstract: An optical pickup position control device according to the present invention automatically adjusts tracking with precision and in a short time. Two deviation signals, which express deviation of a light beam, projected by a pickup which uses the three-beam method, from a target track of a disk, are digitized by two AD converters. Two high-pass filters extract from the deviation signals AC signals, producing a tracking error signal. Further, two low-pass filters extract from the deviation signals DC signals (offset components). Two other low-pass filters extract from the deviation signals low-band signals containing DC components. Using the various foregoing signals, a control circuit calculates correction values to be applied to two offset correcting circuits and to two gain/balance correcting circuits, and corrections are performed collectively and simultaneously on the basis of these correction values.

Abstract: Disclosed is a disc drive system that includes a digital signal processor for processing information sectors read from a CD media. The digital signal processor is configured to parse the information sectors into data frames and subcode frames. A data auto-start unit for triggering a data transfer to a buffer memory when a desired data frame is detected. A subcode auto-start unit for triggering a subcode transfer to the buffer memory when a desired subcode frame is detected. Preferably, the desired data frame and the desired subcode frame have a same MSF. The disc drive system further includes a buffer manager having a plurality of counters that are configured to track the number of data frames and the number of subcode frames being transferred to the buffer memory, and releasing a block including one of the data frames and one of the subcode frames when the counters indicate that the block is complete.

Abstract: An optical storage medium of the present invention enables storage of data with high precision at high speed, and rewriting of data at high speed without an erasing process. Optical storage, reading and retrieving methods and optical storage, reading, and retrieving apparatuses using the medium are also provided. The optical storage medium has at least a polarization-sensitive member having the photo-induced birefringence property, such as a member made of polyester polymer having cyanoazobenzene as a side chain. The above apparatuses have spatial light modulator capable of modulating polarization. The modulator provides information of bit of two-dimensional data to each corresponding pixel by application or non-application of a voltage, and modulates the polarization of the beam incident on each pixel. Thereby, a signal beam transmitted through the spatial light modulator having a spatial polarization modulation corresponding to the two-dimensional data is obtained.

Abstract: An optical system of an optical pick-up device 1 comprises a half mirror 13 and a prism 14 which serve to guide a first laser beam L1 for a CD and a second laser beam L2 for a DVD to the optical recording medium side and a common light receiving element 19. The half mirror 13 is set to have a ratio of a reflectance to a transmittance of 5:1 in the first laser beam L1 to be a P polarized light and the prism 14 is set to have a ratio of a reflectance to a transmittance of 1:3 in the first laser beam L2 having a P polarization component and an S polarization component mixed. The first laser beam for a CD can be guided to the optical recording medium without a light quantity loss. At the same time, a return light Lr can be sent in a sufficient light quantity back to the light receiving element 19 for servo signal generation. Therefore, it is possible to implement a reliable CD recording operation by using the first laser beam.

Abstract: A vibration absorber includes at least one damping means attached to an optical disk drive for absorbing vibration of a base frame of the optical disk drive. The damping means includes at least one elastic member with proper stiffness and a damping coefficient and a rigid body providing mass and moment inertia effect.

Abstract: A conventional plain bearing, in which dynamic pressure is generated by means of lubricating oil, has been assembled in such a way that the whole bearing device is assembled and then the lubricating oil is poured in the interior. As a result, residual air bubbles are produced to cause lowering of the dynamic pressure. The present invention uses magnetic fluid as lubricating oil, and adopts, for enclosing the fluid, a method in which at the time of assembling a spindle motor, a permanent magnet is used, magnetic fluid of a specified amount is previously held in a bearing unit by the magnetic attraction force, and after the insertion of a shaft, the magnetic fluid is supplied into a narrow space of a bearing part by a capillary attraction.

Abstract: A recording/reproducing medium having grooves, a land formed between the grooves, and land prepits formed on the land in which each of said land prepits has a most optimum design condition where a ratio (LLP Level/offset) between a voltage amplitude (LLP Level) of a land prepit detection signal and an offset level (offset) of an RF signal becomes more than about 10 or where an amplitude change of an RF signal through the land prepit becomes minimum. The recording/reproducing medium can be one of a DVD-R and a DVD-RW.

Abstract: A system for transparent recovery from a communications disruption during transmission of a data stream from a source computer to a destination computer is implemented in a method including the steps of determining a portion of the data stream that was successfully received by the destination computer and resuming the transmission from a point in the data stream immediately after the successfully received portion.

Abstract: Methods and apparatus for implementing a technique for sanitizing data frames in a network loop.

Abstract: A multipoint digital simultaneous voice and data (DSVD) conferencing system includes a plurality of local DSVD modems to communicate with a plurality of remote DSVD modems and a bridge to transfer data and digitized voice signals among the plurality of remote DSVD modems by way of the plurality of local DSVD modems. A plurality of simultaneous conferencing connections are maintained between the plurality of local DSVD modems and the plurality of remote DSVD modems. The system support a multipoint DSVD conferencing session connecting the plurality of remote DSVD modems.

Abstract: A DTMF transmission structure of a W-CDMA WLL system in which a DTMF signal is transmitted and received to and from a switching system through a terminal station and a base station controller, each of the terminal station and the base station controller comprising: an echo canceller for extracting an echo component from a received signal; a DTMF detector for discriminating whether a signal to be transmitted is a DTMF signal and controlling the operation of the echo canceller; an adder for adding the signal to be transmitted and the output of the echo canceller; a VOCODER for coding the output signal of the adder to a bit stream form or decoding the received signal in the bit stream form to an analog signal; an adjusted DTMF detector for detecting a digit component from the output of the VOCODER; a DTMF generator for reproducing a normal DTMF signal according to the detected digit component; and a silence generator for generating a silence for a predetermined time immediately after the DTMF signal is reproduce

Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels.

Abstract: In a CDMA transmission power control system for controlling reverse transmission power of reverse transmission power for a mobile station, a Doppler frequency detector (50) detects a maximum Doppler frequency using a pilot symbol extracted from a desired transmission data signal per transmission power control period. When the maximum Doppler frequency is smaller than a Doppler frequency threshold, the system performs a closed loop control in a cycle of the transmission power control period. On the other hand, when the maximum Doppler frequency is larger than the Doppler frequency threshold, the system performs the closed loop control in a cycle of N times the transmission power control period in appearance.

Abstract: The present invention relates to an arrangement and a method for routing packets to be transferred within a Bluetooth network. More particularly it relates to the problem of high level routing within Bluetooth networks, requiring a lot of processing overhead and unnecessary data over head.

Abstract: The present invention relates to a PID/section filter which is adapted without any restriction to an ATSC standard or a DVB standard, comprising a processor module for detecting a PID and a TID by decoding the input transport stream, downloading the information requested by the viewer, and controlling the operation of the each system unit in order to store the information on a memory or ignores it, a PID comparing circuit module for comparing the PID value stored on an internal register with the PID value from the processor module, a download circuit module for downloading the extracted information among the decoded information by the processor module, and an external memory managing module for storing the information extracted in-accordance with the request of the viewer among the information decoded on the processor module.

Abstract: The present invention relates to a method, arrangement and node for routing packets within a Bluetooth network. More particularly it relates to the problem of high level routing within Bluetooth networks, requiring a lot of processing overhead and data buffering.

Abstract: An ATM switch allowing simplified OAM processing only on the line incoming side is disclosed. An incoming line circuit has a header conversion table storing information indicating whether the system is an end point of an OAM processing flow for each connection and an OAM table storing an AIS flag and an RDI flag for each connection. As for an OAM cell found by referring to these tables to be forced to go back to its own port, an switch output port number is rewritten in the OAM function section. In addition, in the case of an AIS cell, the function type is rewritten so as to become an RDI cell. In the case of an LB cell, the LB indication is rewritten so as to become a return LB cell, and switching to its own port is conducted in the ATM switch core.

Abstract: A data communication system, which sends or receives data to or from an application server using the same protocol via a transmission line as one of a wire communication network, a wireless communication network, and both a wire communication network and a wireless communication network, comprises a table 14 containing therein a relation among a service identifier of the application server, a destination address, a communication network type, and a processing time of the application server; and a retransmission timer setting unit 16 which references the table to obtain the processing time of the application server based on the service identifier, destination address, and communication network type during transmission or reception of data to or from the application server and sets the time as a retransmission time.

Abstract: A method for transmitting messages is described which is based on the idea of using bit groups of a data packet, which are not required for assigning the bit groups to a specific logic channel, for transmitting a type of information specific to the bit group for the purpose of transmitting a different type of information. In particular new signaling information, the importance of which could not yet have been recognized when the data packets or the bit group structure thereof was being defined, or the transmission of which was not yet regarded as necessary when laying down the transmission standard.

Abstract: The invention is related to a digital, wired or wireless, communication system constituting a network of multiple nodes. The network comprises a central node. The central node controls all the communication in the network. In such a system, information related to the system itself or to the nodes in the system can be distributed by the central node among the peripheral nodes in the network or kept in a database in the central node, which database is accessible on request from the peripheral nodes in the network. The information can be conveyed to the central node from the peripheral nodes, either commanded by the central node itself or on request from a peripheral node, triggered by an internal event in the peripheral node, e.g. a change of state having external consequences.

Abstract: This transmission system comprises a station of a first type (1) and a plurality of stations of a second type (2, 3, 4, . . . ) which include a transmitting part (T) having a transmit timing controller for transmitting data at a transmit timing and a receiving part (R) having synchronizing circuits for synchronization with data transmitted from the station of the first type. When the stations of the second type are moving, their transmit timing is modified to facilitate the synchronization of the reception of the station (1) by solely being based on the receive timing at these stations of the second type.

Abstract: The method includes the steps of: responsive to satisfaction of a prescribed condition including updating of a program at a download site, requesting transmission of server and the client programs to a program distribution site specified by management information, from a gateway; receiving the server and the client programs from the program distribution site to the gateway; transmitting the received server program from the gateway to a server node; and transmitting the received client program from the gateway to the client nodes.

Abstract: A scalable high power laser system includes a plurality of parallel connected modular power amplifier arms, coupled to a common master oscillator to provide a high average power laser system with a scalable output power level, particularly suitable for laser weapon systems with varying power level output applications. Adaptive optics devices are provided in order to provide pre-compensation of phase front distortions due to the modular amplifier arms as well as encode the wave front of the laser beam with a phase conjugate of atmospheric aberrations.

Abstract: In a semiconductor laser device, a semiconductor laser chip is placed on a stem so that an end surface of the semiconductor laser chip, on which the main radiation side light emission point is located, protrudes from an edge of a header portion of the stem or from an edge of a header portion of a sub-mount provided on the stem so as to conceal no light emission points of the semiconductor. A conductive die bonding paste is used for the die bonding of the semiconductor laser chip. A chamfered portion or a rounded corner portion is formed at the edge of the header portion of the stem or the edge of the header portion of the sub-mount provided on the stem. Also, an optical pickup is constructed of at least the semiconductor laser device, a diffraction grating, a photodetector, a condenser lens and an object lens.

Abstract: Provided is a method of manufacturing a semiconductor laser device capable of reducing time required for manufacture and preventing deterioration in performance due to heating, and a mounting plate and a supporting plate which are used in the method of manufacturing a semiconductor laser device. A semiconductor laser device is formed by stacking a laser chip, a sub-mount and a heat sink and adhering them to each other. The laser chip has a structure such that a p-side electrode and an n-side electrode are formed on the same surface of the crystalline substrate. The sub-mount has a structure such that a front face solder film and a back face solder film are formed on front and back surfaces of a supporting body, respectively. When the laser chip, the sub-mount and the heat sink are stacked, the front face solder film is positioned between the laser chip and the sub-mount and the back face solder film is positioned between the sub-mount and the heat sink.

Abstract: A surface temperature sensor head including a first layer made of a material of a heat conductivity higher than 100 W/mK, a second layer having a crossing tips of a thermocouple and a brazing material and a third layer made of a material of a heat conductivity higher than 100 W/mK, the brazing material unifying the crossing tips, the first layer and the third layer. The sensor head enables a temperature prober to measure temperatures of an object non-destructively with high spatial resolution.

Abstract: A flexible sliding correlator for use in a spread spectrum receiver divides baseband signal samples into different groups, associates each group with a different section of a spreading code, and combines ones of the signal samples with corresponding values in the spreading code section. The groupings and spreading code sections can be changed during operation of the receiver to maximize performance of the receiver under different or changing conditions. In addition, the sample and spreading code value combinations can be further combined in different ways, and the further combinations can be changed during operation of the receiver. According to another aspect of the invention, the baseband signal can be sampled either uniformly or non-uniformly. The phase and frequency of the baseband sampling can be adjusted during operation of the receiver so that samples are taken very close to the optimum sampling position, at the peak of a chip waveform in the baseband signal.

Abstract: A mobile radio communication apparatus having a communication function adaptable to both an analog mode and a digital mode is controlled by a control unit, when it receives from a radio base station a message signal representing that the digital mode is provided. When the strength of the message signal in the analog mode received by a receiving unit from the radio base station is at a predetermined level or higher, a mode of communication services is shifted into the digital mode. When the strength is lower than the predetermined level, the standby status in the analog mode is maintained. Therefore, the mode of communication services is not alternated between the analog mode and the digital mode, with the result that both an outgoing call and an incoming call can be performed successfully even in an unstable service area where a transmitted signal cannot reach the radio base station.

Abstract: A method of processing a bitstream of coded data of video sequences of progressive or interlaced pictures includes estimating motion vectors of groups of pixels. These groups of pixels belong to a top half-frame of the current picture in relation to pixels belonging to a bottom half-frame of a preceding picture. Motion vectors are also estimated for group of pixels of a bottom half-frame of the current picture in relation to pixels belonging to the top half-frame of the current picture. The processing calculates for each macroblock of a top half-frame and a bottom half-frame a respective top motion coefficient and a bottom motion coefficient depending on the estimation of the motion vectors of the top half-frame and the bottom half-frame. The current picture is recognized as an interlaced picture by a substantial equality of the distributions of values of the motion coefficients, or as a progressive picture by a substantial inequality of the distributions of values of the motion coefficients.

Abstract: The object of the present invention is to realize a motion vector search apparatus and method that is able to perform highly accurate motion vector searching even in images containing discontinuous motion relative to encoded images immediately before.

Abstract: A method and a system for decoding information signals encoded by a multi-state encoding architecture and transmitted over a multi-dimensional transmission channel by computing a distance of a received word from a codeword. One-dimensional (1D) input signals are detected in a symbol decoder, implemented using look-up tables, to produce a pair of 1D errors, with each representing a distance metric between the input signal and a symbol in one of two disjoint symbol-subsets. The symbol decoder is implemented as a pair of slicers, each detecting an input signal with respect to one of two disjoint symbol-subsets. A third slicer detects the input with respect to the union of the two disjoint symbol-subsets. Decisions from the first, second and third slicers are processed to define 1D square error terms expressed in Hamming metrics. Reduced bit count error terms allow follow-on error processing to be performed with a minimum of computational complexity.

Abstract: A duplex-system digital-data transmitting apparatus includes a digital-data signal source which outputs serial data at a signal output end. The level of the data is converted by a first level converter circuit. The data is supplied to an FSK modulator circuit to be FSK-modulated. Carriers are, for example, at 11 MHz and 13 MHz and correspond to digital signals “1” and “0”, respectively. The modulated signal is amplified by a driver and is coupled to the human body by a capacitor of about 100 pF. When the human body comes into contact with an electrode, the modulated signal transmitted through the human body is amplified by a pre-amplifier, demodulated by a demodulator circuit, and shaped by a comparator. The level of the shaped signal is converted by a second level converter circuit, and the signal is supplied to a serial input end of a receiving unit. Transmission and reception are performed using a half-duplex system.

Abstract: Non-invasive quantitative plain radiographic evaluation of bone in a bony locale of a body is performed by subjecting the bony locale to a broadband collimated x-ray beam having energy in the range of about 20 keV to 150 keV. Alongside the bony locale is a composite phantom. The composite phantom is comprised of at least two materials, superimposed on one another. An energy-selective multiple-film detector cassette containing at least two films is placed under the body and composite phantom to receive the transmitted x-ray beam. The films in the cassette are developed and digitally scanned to produce sets of composite phantom data and sets of bone data. The data sets are then numerically processed using interpolation whereby to generate the indicated estimate of bone status, namely, bone-mineral density. In an alternative embodiment, an independent measurement is made of the total tissue thickness, and the bone status is determined using interpolation based only on a single film.

Abstract: A method for dialing a phone number in a smart phone having both PDA (Personal Digital Assistant) and mobile phone functions during operation of a PDA function, comprising the steps of loading the OS (Operating System) program for dialing the phone number during operation of the PDA function, selecting a phone number, displaying a dialing icon according to an embodiment of the received signal strength indicator (RSSI), and dialing the selected phone number by selecting the dialing icon in response to the user's request of dialing.

Abstract: An on-demand teleconferencing system and method for setting up an on-demand conference call in a telecommunications system having the Advanced Information Network (AIN) architecture with system signaling the number 7 (SS7) and a Public Switched Telephone Network (PSTN). A subscriber is assigned an on-demand conference call number. When that number is dialed into the PSTN, it is identified by the PSTN that the dialed number requires handling by the SS7. The SS7 links the dialed number to a conference allocation and control system (CACS) which is connected to a plurality of scalable bridge servers. The CACS selects bridge servers available to handle the conference call and based upon a selection criteria such as a peak load sets up the on-demand conference call in one of the selected bridge servers.

Abstract: A waterproof device for communicating by radio to a swimmer or other user includes a radio frequency receiver supplying a signal to a pressure transducer, a hollow, flexible sound conducting tube connected to an output of the transducer, an ear hook for attachment to an ear of a user of the apparatus, the ear hook being shaped to retain and conduct the tube from the receiver to the ear; and an ear piece shaped to fit in the ear of the user and having an opening therein for conducting sound provided via the tube to the ear.

Abstract: For the authentication of messages communicated in a distributed system from an originator to a destination a keyed-hashing technique is used according to which data to be authenticated is concatenated with a private (secret) key and then processed to the cryptographic hash function. The data are transmitted together with the digest of the hash function from the originator to the destination. The data comprises temporal validity information representing the temporal validity of the data. For example the setup key of a communication is therefore only valid within a given time interval that is dynamically defined by the communication originator. After the time interval is exceeded the setup key is invalid and cannot be reused again.

Abstract: Feedback cancellation apparatus uses a cascade of two filters along with a short bulk delay. The first filter is adapted when the hearing aid is turned on in the ear. This filter adapts quickly using a white noise probe signal, and then the filter coefficients are frozen. The first filter models parts of the hearing-aid feedback path that are essentially constant over the course of the day. The second filter adapts while the hearing aid is in use and does not use a separate probe signal. This filter provides a rapid correction to the feedback path model when the hearing aid goes unstable, and more slowly tracks perturbations in the feedback path that occur in daily use. The delay shifts the filter response to make the most effective use of the limited number of filter coefficients.

Abstract: A digital image signal is watermarked by locally changing geometric features of the image. The watermark consists of a pseudo-random, dense subset of image pixels, e.g., a pattern of lines (20). A number of significant image pixels (21,22,23), i.e., pixels which give the highest response to a predetermined processing operation, is determined and then moved (24) to the vicinity (&dgr;) of the line pattern. As a result of this “warping”, the majority of significant image pixels (21,22) is eventually located within the vicinity of the line pattern. At the receiver end, the most significant pixels of an input image are again determined. The image is a watermarked image if a statistically high percentage lies within the vicinity of the line pattern.

Abstract: In a broadly-applicable face image extraction device and method for defining a face by position and size in target images varied in type for face image extraction at high speed, an edge extraction part 1 extracts an edge part from a target image and generates an edge image. A template storage part 2 previously stores a template composed of a plurality of concentric shapes varied in size. A voting result storage part 3 has voting storage regions for each size of the concentric shapes of the template so as to store the result obtained by voting processing carried out by a voting part 4. The voting part 4 carries out the voting processing utilizing the template at each pixel in the edge image, and stores the result obtained thereby in the corresponding voting storage region. After the voting processing, an analysis part 5 performs cluster evaluation based on the voting results stored in the voting storage regions, and then defines the face in the target image by position and size.

Abstract: A fingerprint certifying device for an effective data capture state when a fingerprint is certified, including: a storage unit for storing a registered fingerprint image; a collating unit for collating a collating fingerprint image inputted to a fingerprint sensor with the registered fingerprint image divided into a predetermined number of blocks; a counter for counting up the number of effective blocks in which the registered fingerprint image of the predetermined number of blocks is coincident with the collating fingerprint image; and a display unit for displaying the value corresponding to a ratio of the count value of effective data to a predetermined block number.

Abstract: An image display apparatus and method which facilitate comparison of two or more images of an identical object. In one embodiment, three images to be compared are displayed at matched positions on an image display after going through the position-matching process conducted by the position matching means, in which the vertical positions of a structural feature area (or a anatomical feature area) of the object are aligned horizontally.

Abstract: This invention discloses a method for printed circuit board (PCB) inspection, including providing a multiplicity of PCBs placed on an inspection panel, defining each non-identical PCB in terms of geometry and features which are to be inspected, grouping the PCBs into at least one cluster, the at least one cluster being defined in terms of an amount, location and orientation of the PCBs in the at least one cluster, creating a reference image for the panel defined by a location and orientation of the at least one cluster on the panel and inspecting the panel by comparing sensed information with the reference image.

Abstract: An image recognition system recognizes correspondence between object images contained respectively in two images obtained by two infrared ray cameras. One of the two images is set to a reference image and another of the two images to a comparison image. A correlation parameter indicative of a correlation between a reference pattern contained in the reference image and containing an object image and each pattern contained in the comparison image and identical in shape to the reference pattern is calculated by using a luminance value indicative of a luminance of the reference pattern and a luminance value indicative of a luminance of the each pattern contained in the comparison image. Based on the calculated correlation parameter, a pattern having a highest correlation with the reference pattern is extracted from the comparison image as a corresponding pattern which corresponds to the reference pattern.

Abstract: Systems and methods for compressing portions of a digital image, transmitting the compressed portions over a network, receiving them, decompressing them, and progressively displaying an image representing the original image. An encoder selects an interlaced portion of the original image based on a resolution factor and compresses each line of that portion by selecting the most efficient of multiple compression methods, including Group 3 and modified Group 4 coding schemes. Compressed portions of the original image are transmitted in successive stages, decompressed, and interlaced with the previously transmitted portions of the image, resulting in progressive enhancement of the transmitted, displayed image.

Abstract: An apparatus is arranged to successively make plastic bags each of which includes two layers of panel portion superposed to define aligned top edges, first and second side edges and bottom edges. The plastic bag further includes a first side gusset portion disposed between and extending along the first side edges, a second side gusset portion disposed between and extending along the second side edges, and a bottom gusset portion disposed between and extending along the bottom edges. The apparatus comprises feeding means for feeding a main material intermittently for a length along a feeding path. The main material comprises the layers of panel portion and the first and second side gusset portions continuing longitudinally thereof respectively, the feeding means feeding the main material longitudinally of the layers of panel portion and the first and second side gusset portions.

Abstract: A sealed rolling bearing in which a rolling member is disposed in a bearing space formed between an outer race and an inner race to rotate the outer race and the inner race relatively to each other, and rotation seal members are disposed at the both ends of the bearing space in the axial direction thereof while a stationary seal member is disposed on the side of the inner race, thereby sealing the bearing space. The bearing is provided with vent means on the side of the inner race for approximating a fluid pressure in the bearing space to an outside fluid pressure by causing the inside of the bearing space to communicate with the outer when the state of the fluid in the bearing space and state of the outside fluid become a predetermined relationship.

Abstract: An inexpensive and efficient tunable electromagnetic filter is disclosed, having a wide range of tunable frequencies, comprising a holder with a number of filters mounted on the holder. The frequency of the filter is altered by moving the holder relative to a beam striking the holder so that one of the filters is filtering the beam. The frequency to be filtered may be easily and quickly changed, without altering the structure of the filter. In one embodiment the tunable filter is a disk rotatable by a motor with a number of fixed frequency filters mounted around the periphery of the disk. The filter is surrounded by four fibers providing and receiving beams, as with known add-drop filters.