摘要:
The present invention provides a grating photometer comprising a light splitting box, a preamplifier box, a photodiode array and optical assembly. The light splitting box has a light splitting chamber. There are provided a first extinction hole and second extinction hole respectively on the side wall of the light splitting chamber and on the preamplifier box to correspond to zero order spectrum line. The first hole is a through hole and the second hole is a blind hole. The configuration of the first and second extinction holes direct the zero order spectrum to go into the second extinction hole, as a result, generates a rather small number of stray light in the light splitting chamber coming from the scattering of the zero order spectrum from the second extinction hole, thus suppresses effectively the stray light and improves the signal-to-noise ratio of the photometer.
摘要:
The present invention provides a grating photometer comprising a light splitting box a preamplifier box, a photodiode array and optical assembly. The light splitting box has a light splitting chamber. There are provided a first extinction hole and second extinction hole respectively on the side wall of the light splitting chamber and on the preamplifier box to correspond to zero order spectrum line. The first hole is a through hole and the second hole is a blind hole the configuration of the first and second extinction holes direct the zero order spectrum to go into the second extinction hole, as a result, generates a rather small number of stray light in the light splitting chamber coming from the scattering of the zero order spectrum from the second extinction hole, thus suppresses effectively the stray light and improves tho signal-to-noise ratio of the photometer.
摘要:
A processing chip for a digital microphone and related input circuit and a digital microphone are described herein. In one aspect, the input circuit for a processing chip of a digital microphone includes: a PMOS transistor, a resistor, a current source, and a low-pass filter. The described processing chip possesses high anti high-frequency interference capabilities and the described input circuit possesses high high-frequency power supply rejection ratio.
摘要:
A power supply device, a processing chip for a digital microphone and related digital microphone are described herein. In one aspect, a power supply device includes: at least two cascaded low-dropout linear regulators. In another aspect, a processing chip for digital microphone includes a processing module and a power supply module, wherein the power supply modules includes at least two cascaded low dropout linear regulators. In another aspect, a digital microphone includes a microphone and a processing chip, wherein the processing chip includes a processing module and a power supply module, wherein the power module includes at least two cascaded low-dropout linear regulators. Embodiments described herein provide a power supply device with higher PSRR.
摘要:
Collected information is analyzed by the mobile device to determine whether the device is displaced from the owner. The mobile device monitors and detects a reduction of ambient light to automatically enter into protection mode without manual activation. If an increase of ambient light and movement of the mobile device are both detected, then the device enters into authentication mode. Various techniques to verify the user's identity may be implemented in authentication mode. The user must correctly match an input key code, button combination, or an image recognition photograph against the stored information according to the method of verification chosen in each respective process. An alarm is activated if the device determines authentication is not received but may be disabled when the user's identity is verified after another authentication attempt.
摘要:
A processing chip for a digital microphone and related input circuit and a digital microphone are described herein. In one aspect, the input circuit for a processing chip of a digital microphone includes: a PMOS transistor, a resistor, a current source, and a low-pass filter. The described processing chip possesses high anti high-frequency interference capabilities and the described input circuit possesses high high-frequency power supply rejection ratio.
摘要:
An attachment to an e-mail message received at an e-mail gateway is scanned by a scan server and then is converted into an HTML file. The HTML file includes preview data of the attachment (minus any macro scripts), the entire original data of the attachment, scan functionality enabling a user to send the attachment back to a scan server for a second scan, or extract functionality enabling a user to extract the original attachment data for saving or opening in an application. The recipient is able to open or save the attachment directly if he or she believes it comes from a trusted sender. If the attachment seems suspicious, the recipient previews the attachment first before performing a scan, opening the attachment or deleting it. The recipient performs a scan of the attachment by clicking a “scan” button to send the attachment to a backend server for a second scan where an updated virus pattern file may be available to detect any zero-day malware.
摘要:
A central computer of a telecommunications company handles an incoming call from a caller. The telephone number of the caller is checked against a white list or blacklist and handled accordingly. If the caller is unknown, a question is played to the caller (optionally selected randomly) along with a number of possible answers. The answers are presented randomly, associated with random identifiers, etc. If the caller selects the correct answer then the call is routed to the receiver's telephone. If not, then the call is terminated or other action taken as specified. The incoming call may also be handled by a mobile telephone or computing device at the user's home or business. The mobile telephone may alert the user when answering the incoming call or wait until the question is answered correctly before ringing the telephone.
摘要:
A user generates a pattern in a matrix (or two-dimensional grid) and enters a user name and an associated password. This username, password and pattern are stored locally on a computing device or are transmitted to a remote computer server for later authentication. Upon authentication, an input matrix is displayed. The user enters the password into the matrix in the form of the pattern, and also enters the username. The computer retrieves the previously stored pattern and password with the username. The previously stored pattern is used to read the input password from the input matrix. A match with the stored password indicates authentication. Alternatively, the input matrix only includes the pattern and password is entered separately. The input matrix may also be filled with random characters to improve security. The stored pattern is compared to the input pattern using image analysis or by comparing a set of coordinates.
摘要:
A gain control device for an amplifier and related methods, and an audio processing device are described herein. In one aspect, a gain control device for an amplifier includes: a receiver module configured to receive a control signal; a gain control module configured to control the gain of said amplifier based on said control signal. In another aspect, an audio processing device includes: a microphone; an audio player; and an amplifier, wherein said amplifier includes a gain control device configured to receive a control signal and to control the gain of said amplifier based on the received control signal. In another aspect, a method for controlling the gain of an amplifier includes: receiving a control signal; controlling the gain of said amplifier based on said control signal. The described methods and device reduce the application cost and size.