Abstract: Provided are a current application device capable of improving the electrical contact between projections of a contact section and a surface electrode when applying a test current to a semiconductor element, and a method of manufacturing a semiconductor element properly tested by using the current application device. The current application device includes a contact section that has a plurality of projections, which are brought into contact with a surface electrode of a semiconductor element to apply a test current, and a pressing section that presses the contact section against the semiconductor element such that the projections penetrate a film to come in contact with the surface electrode. The contact section has a plurality of the projections on a plane that has been formed in a curved shape, and the curved-shaped plane is deformed into a planar shape by being pressed by the pressing section.

Abstract: A signal processing device includes: signal processing circuits. The signal processing circuit includes an input/output circuit configured by an input circuit serving as an input interface of a signal of a predetermined frequency band and/or an output circuit serving as an output interface of a signal of the frequency band and performs transmission of a signal of the frequency band between the signal processing circuit and another signal processing circuit. The output circuits of one and another signal processing circuits include circuits having the same configuration. The input circuits of the one and another signal processing circuits include other circuits having the same configurations. The input/output circuits of the one and another signal processing circuits can perform transmission of a signal of the predetermined frequency band even when any one of transmission media having mutually different characteristics is mediated.

Abstract: There is provided a camera module including: a lens; an image pickup device arranged on an optical axis of the lens; and an actuator section configured to reciprocate the image pickup device in an optical axis direction of the lens, wherein the actuator section includes a movable joint section on which the image pickup device is fixed, a parallel link mechanism section having a movable end section attached to the movable joint section and a mounting end section, and a movable element that is configured to perform displacement motion by a displacement amount depending on a level of a voltage to be applied and that is coupled to a coupling region between the movable joint section and the movable end section of the parallel link mechanism section in such a manner that the displacement motion is transmittable.

Abstract: A decoding device includes: a determination unit that determines whether or not a decoding ending condition is satisfied at an interval shorter than an interval of one decoding process in repeated decoding and ends the process in the middle of the one decoding process in a case where the decoding ending condition is satisfied.

Abstract: A semiconductor inspection device (1) equipped with a contacting unit (7) having a contacting side surface (7a) electrically contacting a semiconductor element (3), and which inspects the semiconductor element (3) by making the contacting unit (7) electrically contact the semiconductor element (3). The contacting side surface (7a) is provided with a plurality of projecting units (13), and the semiconductor element inspection device (1) is equipped with a hitting mark detecting unit (11) configured to detect hitting marks of the projecting unit (13) transferred to the semiconductor element (3) when the contacting side surface (7a) contacts the semiconductor element (3), and a control unit (17) configured to determine whether or not an inspection of the semiconductor element (3) is performed appropriately, on the basis of the hitting marks detected by the hitting mark detecting unit (11).

Abstract: A current applying device is provided in which a contact body which surface-contacts with an inspection target body makes contact with the surface of the inspection target body uniformly; current can be favorably applied from the contact body to the inspection target body; and the contact body alone can be replaced. A probe device 1 for applying current by being in pressure-contact with the power semiconductor H includes: a contact body 2 which surface-contacts with the power semiconductor H; and a plurality of electrically-conductive two-tier springs 31 which press the contact body 2 onto the power semiconductor H; the contact body 2 and the plurality of electrically-conductive two-tier springs 31 are separate bodies, and the plurality of electrically-conductive two-tier springs 31 electrify the contact body 2 while providing pressing force F to each of a plurality of sections of the contact body 2.

Abstract: Disclosed herein is a coding apparatus handling quasi-cyclic codes in which a given code word cyclically shifted by p symbols provides another code word, wherein parallel processing is executed in units of mp (a multiple of p) symbols; mp generator polynomials are used; and the generator polynomials gj(x) are selected such that a coefficient of degree deg(gi(x)) of x becomes zero for all gi(x) lower in degree than that and circuits in which these generator polynomials gj(x) are combined are connected with each other.

Abstract: A signal processing device includes: signal processing circuits. The signal processing circuit includes an input/output circuit configured by an input circuit serving as an input interface of a signal of a predetermined frequency band and/or an output circuit serving as an output interface of a signal of the frequency band and performs transmission of a signal of the frequency band between the signal processing circuit and another signal processing circuit. The output circuits of one and another signal processing circuits include circuits having the same configuration. The input circuits of the one and another signal processing circuits include other circuits having the same configurations. The input/output circuits of the one and another signal processing circuits can perform transmission of a signal of the predetermined frequency band even when any one of transmission media having mutually different characteristics is mediated.

Abstract: A transmission apparatus includes: a CRC encoding processing unit configured to include a plurality of generating polynomials for an CRC encoding processing with each of a plurality of data of which the code lengths differ as a target, and employ the optimal generating polynomial out of the plurality of generating polynomials to perform the CRC encoding processing; and a transmission unit configured to transmit data obtained by the CRC encoding processing unit performing the CRC encoding processing.

Abstract: A decoding device includes: a determination unit that determines whether or not a decoding ending condition is satisfied at an interval shorter than an interval of one decoding process in repeated decoding and ends the process in the middle of the one decoding process in a case where the decoding ending condition is satisfied.

Abstract: In the present application, there is provided a decoding apparatus for decoding low density parity check codes, including: a plurality of storage sections configured to store logarithmic likelihood ratios or logarithmic posteriori probability ratios for one codeword into addresses thereof which are independent of each other thereamong; and a readout section configured to simultaneously read out, from among the logarithmic likelihood ratios or logarithmic posteriori probability ratios for the one codeword stored in the storage sections, a plurality of ones of the logarithmic likelihood ratios or logarithmic posteriori probability ratios which correspond to non-zero value elements in a predetermined one row of the check matrix used in a coding process of the low density parity check codes.

Abstract: An encoding method encodes by using a quasi-cyclic code having a code length of n=m n0 and an information word length of k=m k0. The method includes the steps of: creating a systematic code with as many as (n0?k0) parity bits inserted therein in units of an information word k0; making all combinations of (n0?k0) parity bit positions that may occur in units of n0 bits; describing many of m×m cyclic matrices by rearranging the sequence of columns in a parity check matrix in the combinations; subjecting the parity check matrix to elementary transformation to create a unit matrix in which (n?k)×(n?k) matrices made up of the columns corresponding to the parity bit positions; regarding the transformed matrix as a first matrix and this matrix minus the unit matrix as a second matrix; and allocating (n?k) bit positions for the parity bits in such a manner that the number of non-zero elements included in the second matrix is minimized.

Abstract: Disclosed herein is a decoding apparatus for decoding channel input bits from a partial-response channel output in accordance with a trellis obtained by combining a coding constraint and state transitions of a partial response for a case in which the length of a memory required for describing the coding constraint is greater than the length of a channel memory of the partial response. The apparatus may include a first calculation unit configured to carry out a first calculation on first branch information, which may be defined as information on first branches included in three or more branches merging in a state determined in advance, and first path information defined as information on first paths for the first branches; and a second calculation unit configured to carry out a second calculation on a first calculation value obtained as a result of the first calculation.

Abstract: Disclosed herein is a decoding apparatus including: with N and x each being a positive integer and k being a positive integer being equal to or greater than 1, a shift register of k stages configured to accumulate path select information for k inputs that is information about a survivor path of xN bits made up of radix-2x in each transient state of a convolutional code of the number of states N; a path memory having one bank configured to store, at one address, the path select information for k inputs accumulated in the shift register; and a traceback circuit configured to trace back paths for m=rkx time in one clock by use of the path select information read from the path memory with t being a divisor of kx and r being 2 or 1/t.

Abstract: A coder converts M-bit information words into N-bit code words by generating a first and a second provisional code sequence using a coding rule by which, code words are logically assigned to information words so that a two's complement of a sum of coding bits included in the first provisional code sequence, is always different from a two's complement of a sum of coding bib included in the second provisional code sequence, when a first code state of the first sequence encoded starting from a predetermined original state is identical to a second code state of the second sequence encoded starting from said predetermined original state. Then, selecting either the first sequence or the second sequence depending on a value of at least one parameter that correlates with a DC content of the coded bit stream.

Abstract: A decoding apparatus, decoding the LDPC code using a message passing algorithm, sets a message as a log likelihood ratio having, as a base, a real number “a” which is a power of 2, and includes a check node processing calculating unit for receiving a message from a bit node to calculate a message from a check node. The check node processing calculating unit includes a converter for converting an absolute value x of the message to output f (x) and a converting unit supplied as an input y with a sum of the absolute values x of the message from the totality of the bit nodes less one, converted by the converter, subdividing the input y in preset domains and for converting the number in the domain into g (y), and expresses the boundary values of the domains of the input y and f (x) by a power of 2.

Abstract: Disclosed herein is a coding apparatus handling quasi-cyclic codes in which a given code word cyclically shifted by p symbols provides another code word, wherein parallel processing is executed in units of mp (a multiple of p) symbols; mp generator polynomials are used; and the generator polynomials gj(x) are selected such that a coefficient of degree deg(gi(x)) of x becomes zero for all gi(x) lower in degree than that and circuits in which these generator polynomials gj(x) are combined are connected with each other.

Abstract: A transmission apparatus includes: a CRC encoding processing unit configured to include a plurality of generating polynomials for an CRC encoding processing with each of a plurality of data of which the code lengths differ as a target, and employ the optimal generating polynomial out of the plurality of generating polynomials to perform the CRC encoding processing; and a transmission unit configured to transmit data obtained by the CRC encoding processing unit performing the CRC encoding processing.

Abstract: An air conditioner has an air conditioning unit for conditioning air to be introduced into a passenger compartment. The air conditioning unit has an air passage, an air conditioning case defining at least a part of the air passage and a noise absorbing member having a multi-layer structure. The noise absorbing member defines at least a part of the air passage. The noise absorbing member has an unbreathable middle layer, a first noise absorbing layer on an inner side of the middle layer and a second noise absorbing layer on an outer side of the middle layer. The second noise absorbing layer has a hardness greater than that of the first noise absorbing layer to maintain the shape of the noise absorbing member. Also, an air conditioner duct is formed of the multi-layer structure.

Abstract: A decoding device for estimating an information word before being coded, wherein a processing range is limited to a range narrower than values that can be assumed by a value used as input to the decoding device, and decoding including a process of performing an operation referring to a look-up table associating a value within the limited range with an operation result when the value is substituted into a predetermined function is performed.