Abstract: A timepiece pallet fork for a mechanical oscillator including an arbor allowing the timepiece pallet fork to oscillate about a pivot axis, first and second pallets configured to alternatively engage with an escapement wheel when the timepiece pallet fork oscillates, the first pallet being displaceable with respect to the arbor by absorption of energy, the first pallet being displaceable from a first upstream waiting position to a first downstream stopping end position which is offset compared to the first upstream waiting position, and a first arm having an intermediate section including an elastic bend, one end of the arm being fixed with respect to the arbor to form a first fixed end, the intermediate section of the first arm being located between the first fixed end and the first pallet and returning the first pallet towards the first upstream waiting position by the intermediate section being elastically deformable from a first configuration into a second configuration.

Abstract: A timepiece pallet fork for a mechanical oscillator including an arbor allowing the timepiece pallet fork to oscillate about a pivot axis, first and second pallets configured to alternatively engage with an escapement wheel when the timepiece pallet fork oscillates, the first pallet being displaceable with respect to the arbor by absorption of energy, the first pallet being displaceable from a first upstream waiting position to a first downstream stopping end position which is offset compared to the first upstream waiting position, and a first arm having an intermediate section including an elastic bend, one end of the arm being fixed with respect to the arbor to form a first fixed end, the intermediate section of the first arm being located between the first fixed end and the first pallet and returning the first pallet towards the first upstream waiting position by the intermediate section being elastically deformable from a first configuration into a second configuration.

Abstract: A timepiece pallet fork for a mechanical oscillator including an arbor allowing the timepiece pallet fork to oscillate about a pivot axis, first and second pallets configured to alternatively engage with an escapement wheel when the timepiece pallet fork oscillates, the first pallet being displaceable with respect to the arbor by absorption of energy, the first pallet being displaceable from a first upstream waiting position to a first downstream stopping end position which is offset compared to the first upstream waiting position, and a first arm having an intermediate section including an elastic bend, one end of the arm being fixed with respect to the arbor to form a first fixed end, the intermediate section of the first arm being located between the first fixed end and the first pallet and returning the first pallet towards the first upstream waiting position by the intermediate section being elastically deformable from a first configuration into a second configuration.

Abstract: A gong for a striking-work device of a timepiece. The gong includes a spring blade forming a main body of the gong and is adapted to act as a vibrating member so as to produce a sound following an actuation. The spring blade includes at least one opening formed in its main body. The invention also includes a timepiece, such as a mechanical watch, comprising such a gong.

Abstract: A timepiece pallet fork for a mechanical oscillator including an arbor allowing the timepiece pallet fork to oscillate about a pivot axis, first and second pallets configured to alternatively engage with an escapement wheel when the timepiece pallet fork oscillates, the first pallet being displaceable with respect to the arbor by absorption of energy, the first pallet being displaceable from a first upstream waiting position to a first downstream stopping end position which is offset compared to the first upstream waiting position, and a first arm having an intermediate section including an elastic bend, one end of the arm being fixed with respect to the arbor to form a first fixed end, the intermediate section of the first arm being located between the first fixed end and the first pallet and returning the first pallet towards the first upstream waiting position by the intermediate section being elastically deformable from a first configuration into a second configuration.

Abstract: A striking watch including a watch case delimiting an internal chamber, as well as the insert partition defining an acoustic sound emission membrane, the insert partition divides the internal chamber into an acoustic cavity and a tight housing which receives a timepiece movement and a gong provided to vibrate after having received an impact from a striking mechanism associated with the timepiece movement, and the acoustic cavity is delimited at least by the insert partition and by a back cover, and the insert partition bears the gong.

Abstract: A striking watch including a watch case delimiting an internal chamber, as well as the insert partition defining an acoustic sound emission membrane, the insert partition divides the internal chamber into an acoustic cavity and a tight housing which receives a timepiece movement and a gong provided to vibrate after having received an impact from a striking mechanism associated with the timepiece movement, and the acoustic cavity is delimited at least by the insert partition and by a back cover, and the insert partition bears the gong.

Abstract: A gong for a striking-work device of a timepiece. The gong includes a spring blade forming a main body of the gong and is adapted to act as a vibrating member so as to produce a sound following an actuation. The spring blade includes at least one opening formed in its main body. The invention also includes a timepiece, such as a mechanical watch, comprising such a gong.

Abstract: The present invention concerns an electrical installation or device equipped with a power supply unit comprising a voltage converter having primary and secondary parts respectively defining a primary side and a secondary side of this electrical installation or device. This power supply unit comprises a power management unit arranged on the primary side, the primary part of the converter being associated with a control circuit also arranged on the primary side and controlling the electrical energy flowing in the primary power path of the primary part. The control circuit receives from the power management unit at least a first control signal for switching OFF the electrical energy in the primary power path, the power supply unit entering a very low power mode (“Power-down” mode) when the first control signal is set to OFF so that the converter is not supplied anymore.

Abstract: The present invention concerns an electrical installation or device equipped with a power supply unit comprising a voltage converter having primary and secondary parts respectively defining a primary side and a secondary side of this electrical installation or device. This power supply unit comprises a power management unit arranged on the primary side, the primary part of the converter being associated with a control circuit also arranged on the primary side and controlling the electrical energy flowing in the primary power path of the primary part. The control circuit receives from the power management unit at least a first control signal for switching OFF the electrical energy in the primary power path, the power supply unit entering a very low power mode (“Power-down” mode) when the first control signal is set to OFF so that the converter is not supplied anymore.

Abstract: The present invention concerns an electrical installation or device equipped with a power supply unit comprising a voltage converter having primary and secondary parts respectively defining a primary side and a secondary side of this electrical installation or device. This power supply unit comprises a power management unit arranged on said primary side, the primary part of the converter being associated with a control circuit also arranged on said primary side and controlling the electrical energy flowing in the primary power path of said primary part. The control circuit receives from the power management unit at least a first control signal for switching OFF the electrical energy in said primary power path, said power supply unit entering a very low power mode (“Power-down” mode) when said first control signal is set to OFF so that the converter is not supplied anymore.

Abstract: The present invention concerns an electrical installation or device equipped with a power supply unit comprising a voltage converter having primary and secondary parts respectively defining a primary side and a secondary side of this electrical installation or device. This power supply unit comprises a power management unit arranged on said primary side, the primary part of the converter being associated with a control circuit also arranged on said primary side and controlling the electrical energy flowing in the primary power path of said primary part. The control circuit receives from the power management unit at least a first control signal for switching OFF the electrical energy in said primary power path, said power supply unit entering a very low power mode (“Power-down” mode) when said first control signal is set to OFF so that the converter is not supplied anymore.

Abstract: A method and system for compensating for code invariancies in a digital communication receiver is performed on demodulated signal data. A pre-Viterbi invariancy compensation is performed on the demodulated signal data to reverse a selected one of a number of possible transformations to create compensated signal data. The compensated signal data is then depunctured. The depunctured data is then decoded. An encoder encodes the decoded data. The encoded data and the depunctured data are then compared to determine equivalence. The pre-Viterbi invariancy compensation is performed to reverse a different one of the number of possible transformations to create the compensated signal data when the encoded data and the depunctured data are determined not to be equivalent. A post-Viterbi invariancy compensation is then performed on the decoded data to produce a set of compensated outputs. Thus, the post-Viterbi invariancy compensation reverses each one of the number of possible transformations on the decoded data.

Abstract: This invention concerns a novel Viterbi decoding apparatus and method in which a survivor path unit (SPU) implements the traceback method with a RAM which stores path information in a manner which allows fast read access without requiring physical partitioning of the RAM. This results in an implementation that requires less chip area than conventional solutions.

Abstract: The present invention concerns a DBS receiver which serves to combine the functions of variable rate demodulation, convolutional decoding, de-interleaving and block decoding. The demodulation stage includes a novel circuit for clock synchronization. By combining the functions of these components this device provides a higher level of utility as measured in terms of reliability, simplicity, flexibility, cost effectiveness, and integration of board layout while maintaining optimum-quality signal processing.

Abstract: A communications receiver system is presented for detecting burst errors and providing erasure information to a block decoder, thereby effectively doubling the conventional correction capability of the block decoder with only a minimal increase in complexity. In one embodiment, the receiver includes a demodulator which includes circuitry to detect error bursts in the received symbol sequence. Once detected, the locations of symbols in error are marked in the form of erasure flags. An error correction decoder is then able to correct up to twice as many errors with the additional information provided by the erasure flags.

Abstract: A video device is provided having a more efficient Reed-Solomon decode methodology. The Reed-Solomon decoder advantageously receives pre-indentified error locations and, given those locations, focuses entirely upon correcting (as opposed to detecting) erroneous symbols at those locations. A noise detector is used to identify erroneous symbol intervals, and forwards information signifying erroneous symbol locations or erases symbols within those locations. The detected error locations are forwarded to the Reed-Solomon decoder which then adds (or subtracts) correction quantities to symbols within those locations. Given pre-identified error locations, the Reed-Solomon decoder can correct double the number of corrupted symbols. The decoder, herein provided, therefore proves beneficial in high speed decoding of video signals sent from a video device having forward error correction.

Abstract: A communications receiver system is presented for detecting burst errors and providing erasure information to the block decoder, thereby effectively doubling the conventional correction capability of the block decoder with only a minimal increase in complexity. In one embodiment, this mechanism takes the form of a circuit which re-encodes the output of the inner decoder, compares it with the received sequence of code symbols, and flags a portion of the inner decoder output for erasure when an excessive number of code symbol errors are detected. In a second embodiment, this mechanism takes the form of a circuit which makes hard symbol decisions on the channel signal, compares the hard decisions to the channel signal to determine a noise level, and thereafter flags the channel output in regions with excessive noise levels.

Abstract: A concatenated three layer Viterbi, Reed-Solomon/Deinterleaver and Descrambler forward error correction decoder may be utilized in digital video and audio systems, and for direct broadcast satellite applications. The digital signal may be a compressed video and audio signal transmitted from a direct broadcast satellite. Acquisition for three layers of synchronization are required, but once all three layers are in-sync, down stream data synchronization monitoring will suffice so that upstream synchronization monitoring can be disabled thus improving system robustness to noise bursts and false synchronization on false sync bytes generated at the transmission encoder during non-changing data signal conditions.

Abstract: A communications receiver system is presented for detecting burst errors and providing erasure information to the block decoder (outer decoder), thereby effectively doubling the conventional correction capability of the block decoder with only a minimal increase in complexity. In one embodiment, this mechanism takes the form of a circuit which re-encodes the output of the inner decoder, compares it with the received sequence of code symbols, and flags a portion of the inner decoder output for erasure when an excessive number of code symbol errors are detected. In a second embodiment, this mechanism takes the form of a circuit which makes hard symbol decisions on the channel signal, compares the hard decisions to the channel signal to determine a noise level, and thereafter flags the channel output in regions with excessive noise levels.