5 results about "Serial system" patented technology

The present disclosure provides a channel optimization method and device, system, electronic equipment and program product. The method comprises: obtaining a channel frequency response value of a target channel based on current state information of a feedforward equalizer of a receiving end of the target channel in a serial system, the channel frequency response value being used to represent transmission quality of different frequency band signals in the target channel; generating an adjustment instruction of a target parameter based on the channel frequency response value, the target parameter being a parameter in a channel before the feedforward equalizer in the target channel; and adjusting the target parameter based on the adjustment instruction of the target parameter, so that the target channel transmits serial signals with the adjusted target parameter. The embodiments of the present disclosure can reduce the time and cost of channel optimization, and help to reduce the bit error rate of the channel and improve the stability of the channel.

The invention belongs to the technical field of signal processing, and particularly relates to a jitter analysis method and system for a high-speed serial signal, and the method comprises the steps: recognizing and separating a data jitter sequence DDJ in a total jitter sequence TIE in the high-speed serial signal, and obtaining a first jitter sequence containing random jitter data RJ; the first frequency spectrum is obtained by performing frequency spectrum conversion on the first jitter sequence, the first power spectrum is obtained by calculating the first frequency spectrum, and the total power and the root-mean-square value of the random jitter are obtained by calculating partial segments of the first power spectrum, so that the root-mean-square value of the random jitter in the high-speed serial system is estimated, and the accuracy is improved. The method is suitable for various signals with different code patterns; by performing selective accumulation calculation on the power spectrum fragments, stable random jitter estimation is realized, the estimation complexity is reduced, and system resources are saved.

The present invention relates to a method and a control device (10) for controlling a display device (8) through a network (NT2) of the low-voltage differential transmission type, called LVDS, in a vehicle (2), said control device (10) being connected to a serial system network (NT1), called CAN network, of the vehicle (2). The method comprises, in response to a first activation command received from the CAN network (NT1), triggering an initialization phase comprising: a1) initialization of the control device (10); a2) initialization of the display device (8); and a3) deactivation of the LVDS network (NT2). Upon detection that steps a1), a2) and a3) are completed, the LVDS network (NT2) is activated, causing the operation of the control device (10) and the display device (8) in a so-called normal mode. A control of the display device (8) can then be carried out by exchanging functional messages (MSG2) according to the normal mode.Figure for abstract: Figure 1.

The utility model relates to the technical field of communication, and discloses a serial system based on a built-in pressure function touchpad, which comprises a host unit and a touchpad unit, and the touchpad unit is connected with the host unit through a first wired interface; wherein the touch panel unit comprises a touch module and a pressure module, the touch module and the pressure module are connected through a second wired interface, the pressure module is composed of a plurality of pressure sensors, the touch module is composed of a touch chip and a touch matrix, and the touch chip is electrically connected with the touch matrix. According to the utility model, the touch module is adopted as a bridge between the pressure module and the host unit, corresponding pressure signals are forwarded in batches, and the installation of a specific equipment program driver and the addition of a data signature on the host unit can be effectively avoided, so that the host unit communicates with the pressure module in real time through the touch module, and the real-time communication between the host unit and the pressure module is realized. And thus, the data communication efficiency between the host unit and the NFC module is improved.

This invention belongs to the field of signal processing technology, specifically relating to a jitter analysis method and system for high-speed serial signals. By identifying and separating the data jitter sequence DDJ from the total jitter sequence TIE in a high-speed serial signal, a first jitter sequence containing random jitter data RJ is obtained. A first spectrum is obtained by spectral transformation of the first jitter sequence, and a first power spectrum is calculated from the first spectrum. The total power and root mean square (RMS) value of the random jitter are obtained by calculating a portion of the first power spectrum, thus achieving RMS estimation of random jitter in high-speed serial systems, improving accuracy, and being applicable to signals with various code types. By selectively accumulating power spectrum segments, stable random jitter estimation is achieved, reducing estimation complexity and saving system resources.