31results about "Equal length code receiver" patented technology

Embodiments of the present invention provide a method, apparatus, and system of wireless transmission with frame alignment. For example, a method in accordance with demonstrative embodiments of the invention may include synchronizing between a transmitter using a first modulation scheme, which may have multiple frame formats, and a receiver using a second modulation scheme, by calculating a transmission time that aligns an inter frame space start time of the first and second modulation schemes. Other features are described and claimed.

A method and apparatus for detecting typing errors of critical fixed series of characters (digits) by using at least one redundant parity digit. The invention detects the most common typing errors that involve both permutations and incorrect striking of adjacent characters during data entry via a keyboard of an electronic apparatus. The method provides warning to the data input operator when incorrect data entry occurs and optionally automatically suspends entry thereof.

A letter input structure of a two-click keyboard adapting a Morse code and an input method of the same, and a recording medium of the method are disclosed. A certain letter is created in selective combination with two keypads among seven keypads consisting of a dot(•) group keypad of a dot(•) keypad, a dot dot(•) keypad and a dot dot dot(•) keypad of a Morse code, a dash(-) group keypad of a dash(-) keypad, a dash dash(- -) keypad, and a dash dash dash (- - -) keypad which are separated and arranged at left and right sides (or upper and lower sides) and one function keypad.

The invention discloses a platform authentication method suitable for trusted network connect (TNC) architecture based on tri-element peer authentication (TePA). The method relates to a platform authentication protocol of tri-element peer authentication, and the protocol improves network security as compared with prior platform authentication protocols; in the platform authentication protocol of the TNC architecture based on TePA, a policy manager plays a role as a trusted third party, which is convenient for concentrated management, thus enhancing manageability; the invention relates to the platform authentication protocol of the TNC architecture based on TePA, has different implementation methods and is beneficial for different dispositions and realizations.

A method and related system of transmission channel detection condition in a wireless communication system are disclosed. The method includes receiving a symbol, performing a channel estimation operation to generate a channel estimation result according to the symbol, performing a cross correlation operation on the channel estimation result and an initial channel estimation result to generate an operation result, and determining whether the condition of the transmission channel have changed or not.

A connector 1 includes a connection request information reception processing unit 12 that obtains first connection request information transmitted by the first communication terminal and second connection request information transmitted by the second communication terminal, a connection request matching processing unit 151 that determines whether or not the first connection request information and the second connection request information obtained by the connection request information reception processing unit 12 form a combination under a predetermined condition, and a connection setting processing unit 15 that generates a connection permission message which includes connection information for a connection setting with the second communication terminal, depending on a determination result by the connection request matching processing unit 151 and transmits the connection permission message to the second communication terminal.

The invention provides an automatic identification method for short-wave Morse messages based on intelligent image analysis. The method comprises: Step 1, according to the code rate and the system sampling rate of the training Morse signal, locally generate codeword samples of the training Morse signal to form a training sample set; Step 2, generating the training sample set The corrected spectrogram of each sample signal; step 3, using the corrected spectrogram of each sample signal as the input of the convolutional neural network, and adopting the transfer learning method to train the convolutional neural network; step 4, for the received target moiré Morse signal to carry out codeword interception to obtain all codeword data of the target Morse signal, and generate the corrected spectrogram of each codeword data according to step 2; The corrected spectrogram of each codeword data of the Morse signal is identified, and the codeword corresponding to the corrected spectrogram is output. The invention can improve the recognition effect of the Morse signal message.

The invention provides a subscriber station (10; 20; 30; 1 - 4) for a serial bus system (100) and to a method for communicating in a serial bus system (100). The subscriber station (10; 20; 30; 1 - 4) comprises a communication control device (11; 21; 31) for controlling communication of the subscriber station (10; 20; 30; 1 - 4) with at least one other subscriber station (10; 20; 30; 1 - 4) of the bus system (100), a transmission / capturing device (12; 22; 32) for transmitting a transmission signal (TX1; TX2; TX3; TX4), generated by the communication control device (11; 21; 31), in a frame (450; 460) to a bus (40) of the bus system (100), and a scheduling unit (15; 25; 35) for planning temporal access of the subscriber station (10; 20; 30; 1 - 4) to the bus (40) in at least one time slot (S1 - S4) of a round (C) of temporal subsequent time slots (S1 - S4). At least one time slot (S1 - S4) is provided in a round (C) for each subscriber station (10; 20; 30; 1- 4) of the buses (40) for transmitting their transmission signal (TX1; TX2; TX3; TX4) and the round (C) repeats in cycles. The scheduling unit (15; 25; 35) is designed to determine an allocation, using at least information captured by the bus (40), which time slot (S1 - S4) of the round (C) the transmission / capturing unit (12; 22; 32) may use to transmit the frame (450; 460) for the transmission signal (TX1; TX2; TX3; TX4) to the bus (40).

A code acquisition circuit for acquiring code synchronization between an n-chip spreading code of a received spread spectrum radio signal and an n-chip local reference code generated by a code generator within a receiver, includes a variable delay means which operates to introduce a delay shift into the said received radio signal. A correlator operates to correlate n-chips of the local reference code with n-samples of the received signal communicated thereto, and generates a correlation signal representative of a result of the correlation. A code acquisition controller operates in combination with the correlation signal to maintain the delay shift for at least one correlation and thereafter to change the delay shift, wherein the delay shift is a fraction of one chip period.

A light source unit includes a holder, a light source, coupling lens, and a support member. The light source is supported by the holder and projects a light beam against a target. The coupling lens adjusts an optical axis of the light beam. The support member contacts the holder and the coupling lens to fix the coupling lens in place on the holder after the coupling lens adjusts the optical axis of the light beam. The holder and the coupling lens are adhered to the support member using an adhesive agent. An optical scanner includes a rotary deflector to deflect and scan the light projected from the light source unit, a scan optical element to focus the light deflected by the rotary deflector, and the light source unit. An image forming apparatus includes the optical scanner.