44results about How to "Probability of error" patented technology

A method and apparatus for encoding and decoding data using an overall code comprising an outer parity-check and an inner parallel concatenated convolutional, or turbo code. The overall code provides error probabilities that are significantly lower than can be achieved by using turbo codes alone. The output of the inner code can be punctured to maintain the same turbo code rate as the turbo code encoding without the outer code. Multiple parity-check codes can be concatanated either serially or in parallel as outer codes. Decoding can be performed with iterative a posteriori probability (APP) decoders or with other decoders, depending on the requirements of the system. The parity-check code can be applied to a subset of the bits to achieve unequal error protection. Moreover, the techniques presented can be mapped to higher order modulation schemes to achieve improved power and bandwidth efficiency.

A device comprising a touch screen (2) which reacts to a touch by a touching means (3, 7) or a corresponding input and which is arranged to display one or more user interface elements (8), and status means (5) for detecting the active mode of the touching means (3, 7) giving the input to the touch screen (2). The device is arranged to adapt one or more user interface elements (8) displayed on the touch screen (2) to be suitable for the touching means (3, 7) whose active mode is detected by the mode status means (5). The invention also relates to a device, a computer program product and a software product implementing the method.

A method for performing a space-time coding of an information signal to be transmitted by a multi-channel communication system includes demultiplexing received signals into at least two first space-time coded signals and at least two second space-time coded signals, obtaining a first decoding output signal by using a first decoder performing a first space-time decoding based on the at least two first space-time coded signals and a first a-priori probability signal, applying the output of one of a first decoder or a first conversion unit converting the output of the first decoder to a first substracting unit where an a-priori information signal is subtracted, scrambling the output of the first subtracting unit so as to generate a scrambled extrinsic information, applying one of the scrambled extrinsic information or an output of a second conversion unit converting the scrambled extrinsic information as a second a-priori probability to a second decoder receiving that at least two second space-time encoded signals, applying the output of one of the second decoder or a third conversion unit converting the output of the second decoder to a second subtracting unit which has another input receiving the scrambled extrinsic information, generating a descrambled signal based on the output of the second subtraction unit, and applying the descrambled signal or an output of a fourth conversion unit as the first a-priori probability signal to the first decoder.

A wireless fingerprint attendance system comprises at least one fingerprint scanner and a computer server. First templates of fingerprint related data are stored on the server, and similar templates are stored on the scanner. When a fingerprint is scanned, the fingerprint data is transmitted wirelessly to the server, where a comparison is made. The server directs the scanner to display an indication whether or not a match was found. If available, an updated list of templates of fingerprint related data is transmitted from the server to the scanner and is added to the first templates. If a connection is not made, the scanned data remains on the scanner, which makes the comparison using the scanner templates. At periodic intervals the scanner and server attempt to connect. At a successful connection, the scanned fingerprint data is wirelessly transmitted to the server, and the scanned fingerprint data is purged from the scanner.

A technique that randomizes a sample window over which one or more interleave mismatch corrections are made to a time interleaved analog to digital converter (TIADC).

A technique that randomizes a sample window over which one or more interleave mismatch corrections are made to a time interleaved analog to digital converter (TIADC).

A flowchart including objects A through C is displayed on the monitor of a computer. If an object D is inserted between objects A and B, object D is dropped on a line AB. By this operation, objects A and D are automatically connected, and objects D and B are automatically connected.

The invention relates to a method for encoding a number of feedback information messages in a mobile radio communications system using carrier aggregation, the method comprising:encoding the number of feedback information messages by a set of codewords, where each feedback information message can be of at least a first kind or a second kind. The method is distinguished by that for at least one feedback information message there is at least one codeword corresponding to information of the first kind and at least one codeword corresponding to information of the second kind, wherein the modulation symbol of one of said at least one codeword corresponding to information of the first kind and the modulation symbol of one of said at least one codeword corresponding to information of the second kind have a maximum distance. The invention also relates to a mobile terminal and radio basestation for a communications system.

A method for detecting errors in a transfer of data from a transmitter to at least one receiver includes coding the data together with address information identifying the receiver in a series of data packets and transferring the data and the address information using the data packets. The method also includes generating, at the transmitter, a check value for each data packet and transferring the check value with / in the data packet to the receiver. The method further includes comparing, at the receiver, the check value with an expectation value, wherein an error is detected in the event of a deviation. For each data packet to be transmitted, the method includes calculating a number sequence value from the address information using a first calculation rule, generating the check value from the sequence value using a second calculation rule and transmitting the data packet with the check value to the receiver.

A biological test strip is disclosed and includes a source end, at least one test line and at least two control lines. The source end is used for dropping a sample liquid thereon. The at least one test line is used to react with at least one sample of the sample liquid to generate a colorization reaction. The at least two control lines are used to react with the sample liquid to generate at least two colorization reactions with different color darkness, so as to define a predetermined maximum concentration value and a predetermined minimum concentration value, both of which can be used as color comparison references for the at least one test line.

Systems, methods and computer program products for use in creating a glossary database including user interface string sets extracted from at least one product and their corresponding set identifiers, wherein a set identifier contains context information about a previous use of a user interface string, and for generating a second human language user interface for a product having a first human language user interface, using the glossary database. Creating a glossary database includes extracting a plurality of user interface strings from at least one product, creating a set identifier for each user interface string, and grouping user interface strings having the same set identifier into string sets.

An attenuation reduction grounding pattern structure for connection pads of a flexible circuit board includes a plurality of high frequency connection pads formed on a component surface of a substrate and a plurality of differential mode signal lines arranged on the substrate and connected to the high frequency connection pads. The substrate has a grounding surface forming a grounding layer. The grounding layer includes an attenuation reduction grounding pattern structure formed at a location corresponding to the transition zone and including a hollowed area and a protruded portion. The protruded portion extends a predetermined length in a direction from the grounding layer toward the high frequency connection pads and along the adjacent high frequency connection pads to reach the transition zone. The protruded portion and the high frequency connection pads form a polarization-direction-varying electric field in the transition zone.

The invention concerns a method of transmitting video data comprising information bits (201), a video processing unit (10, 20, 40) with a control unit (12, 22, 42) for sending and / or receiving such video data, and a computer program product for the execution of said method. The method comprises the application of a systematic channel encoding (202) on the information bits (201) of the video data and obtaining a sequence comprising the encoded information bits (203) and error correction bits (204, 403) of the information bits (201). For transmission to another video processing unit (10, 20, 40), the encoded information bits (203) and the error correction bits (204, 403) are inserted into a primary coded picture network abstraction layer (205, 401) and a redundant coded picture network abstraction layer (206, 402), respectively. At the other video processing unit (10, 20, 40), the error correction bits (204, 403) in the redundant coded picture network abstraction layer (206, 402) are used for detecting (404) and correcting (405) errors in the received primary coded picture network abstraction layer (205, 401) and for performing the video decoding (407) of the corrected primary coded picture network abstraction layer (406).

An optical mouse suitable for being put on a surface of an object and including a light source, an image sensor, and a total internal reflection (TIR) prism is provided. The light source is suitable for emitting a light beam, and the TIR prism is disposed between the surface of the object and image sensor located on an optical path of the light beam. The TIR prism has an air gap which reflects the light beam emitted from the light source to the surface. Next, the light beam is reflected by the surface back to the TIR prism, and the light beam reflected by the surface passes through the air gap to be captured by the image sensor. Additionally, an optical mouse using Michelson interference principle is provided. The above-mentioned optical mice improve the accuracy when capturing images and reduce the probability of incorrect image judgment.

A high extinction ratio interferometer is disclosed. The interferometer includes a first and second optical fiber each having a first end and a reflective end and an optical coupler for coupling the first optical fiber and the second optical fiber between their first ends and their reflective ends. The first optical fiber provides a first optical path from the optical coupler to its reflective end and back to the optical coupler and the second optical fiber provides a second optical path from the optical coupler to its reflective end and back to the optical coupler. The second path is greater than the first path by a delay length and the first path and the second path are each less than approximately 20 cm. The interferometer finds application as a differential phase shift keyed (DPSK) demodulator, particularly useful in a satellite system employing inter-satellite communication.

An inker is usually used in electrical properties testing processes to mark the defective dies of the semiconductor wafer. However, the conventional inker having only one axis will be shaken during working time, resulting in making a mistake of marking the wrong dies. The present invention discloses a multi-axes inker to fix the problem. Another axis is added to the conventional inker. The new axis can help in restricting the original axis, so that the inker is stable and can mark the right dies without a mistake.

The invention concerns a method of transmitting video data comprising information bits (201), a video processing unit (10, 20, 40) with a control unit (12, 22, 42) for sending and / or receiving such video data, and a computer program product for the execution of said method. The method comprises the application of a systematic channel encoding (202) on the information bits (201) of the video data and obtaining a sequence comprising the encoded information bits (203) and error correction bits (204, 403) of the information bits (201). For transmission to another video processing unit (10, 20, 40), the encoded information bits (203) and the error correction bits (204, 403) are inserted into a primary coded picture network abstraction layer (205, 401) and a redundant coded picture network abstraction layer (206, 402), respectively. At the other video processing unit (10, 20, 40), the error correction bits (204, 403) in the redundant coded picture network abstraction layer (206, 402) are used for detecting (404) and correcting (405) errors in the received primary coded picture network abstraction layer (205, 401) and for performing the video decoding (407) of the corrected primary coded picture network abstraction layer (406).

An iterative decoder circuit includes an N number of sub-decoders, N−1 of the sub-decoders each being responsive to a baseband signal from one of M number of signal processing circuits. Each of the N−1 number of sub-decoders includes, an inner delay responsive to a baseband signal provided by a corresponding signal processing circuit for generating an inner delayed signal, a modified decoder that receives the inner delayed signal and generates a set partition signal, some of which have less errors than previous set partition signals. An Nth inner delay is responsive to the baseband signal and provides an Nth inner delayed signal. An Nth modified decoder is responsive to the Nth inner delayed signal and to the set partition signal and provides an output signal, wherein the probability of error of the output signal is reduced by correcting errors in some of the set partition signals.

A computed tomography unit includes a radiation detector with several detector elements, a data recording system for reading the electrical signals generated by the detector elements and the processing thereof to give raw data may be supplied via a data transmission path. The computed tomography unit further includes an analytical device for the automatic determination of the quality of the data recording system and / or of the data transmission path and optionally the radiation detector in addition. The analytical unit in particular initiates a measurement for the generation of raw data, calculates at least one value for at least one parameter which permits a quality determination therefrom and displays an analytical result, which incorporates the calculated value, on a display device.

A method for estimating error probability of LDPC codes includes ordering LDPC codes according to features in each code with known error characteristics. The method includes identifying features in each LDPC code having known error characteristics; adding each code to one or more categories based on the existence of such features; and ranking the LDPC codes according to the level of error risk.

A message is stored and processed by an untrusted third party by generating a codeword using a selected one of a set of error correcting codes (ECC). The selected ECC depends on a weight rate of the block, and each codeword satisfies a minimum distance criterion with respect to the codewords of all possible ECCs and all possible weight rates. Each symbol of the codeword is modifying explicitly, randomly and independently according to parameters of a channel to obtain a randomized codeword. Then, an encoded result of an operation performed on the randomized codeword by the untrusted third party is decoded.

A computed tomography unit includes a radiation detector with several detector elements, a data recording system for reading the electrical signals generated by the detector elements and the processing thereof to give raw data may be supplied via a data transmission path. The computed tomography unit further includes an analytical device for the automatic determination of the quality of the data recording system and / or of the data transmission path and optionally the radiation detector in addition. The analytical unit in particular initiates a measurement for the generation of raw data, calculates at least one value for at least one parameter which permits a quality determination therefrom and displays an analytical result, which incorporates the calculated value, on a display device.

In a method to operate an image-generating medical modality in order to avoid harm to a patient caused by an electromagnetic field, an adjustment process is implemented in which the electromagnetic field is radiated by the modality and preliminary image data are acquired using the electromagnetic field; and a clearance between the patient and a wall of the modality is determined from the image. The determined clearance forms the basis of a check process to determine an adaptation of the electromagnetic field for a diagnostic examination of the patient that follows. During the diagnostic examination, that also includes radiation of the electromagnetic field, movement monitoring of the patient takes place and the adjustment process is restarted as soon as a movement of the patient is registered.

The invention relates to a method for encoding a number of feedback information messages in a mobile radio communications system using carrier aggregation, the method comprising: encoding the number of feedback information messages by a set of codewords, where each feedback information message can be of at least a first kind or a second kind. The method is distinguished by that for at least one feedback information message there is at least one codeword corresponding to information of the first kind and at least one codeword corresponding to information of the second kind, wherein the modulation symbol of one of said at least one codeword corresponding to information of the first kind and the modulation symbol of one of said at least one codeword corresponding to information of the second kind have a maximum distance. The invention also relates to a mobile terminal and radio basestation for a communications system.

The present invention provides a sequencing library, and the sequencing library has an inserted fragment which is an equidirectional alternating concatemer of a sequence to be tested and a tag sequence. The present invention further provides a method for preparing the sequencing library. The present invention also provides a sequencing method. The sequencing library and sequencing method as provided in the present invention are capable of removing DNA amplification errors and sequencing errors under any sequencing depths, so that mutations of DNA molecules could be ultra-accurately determined. The sequencing library of the present invention is suitable for construction of a sequencing library of trace short DNA fragments and even of single-strand DNAs.