CN115603863A - Input signal reading method and device - Google Patents
Input signal reading method and device Download PDFInfo
- Publication number
- CN115603863A CN115603863A CN202211519213.6A CN202211519213A CN115603863A CN 115603863 A CN115603863 A CN 115603863A CN 202211519213 A CN202211519213 A CN 202211519213A CN 115603863 A CN115603863 A CN 115603863A
- Authority
- CN
- China
- Prior art keywords
- input signal
- sliding window
- size
- adjusting
- average period
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000005070 sampling Methods 0.000 claims description 30
- 238000010586 diagram Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 230000006854 communication Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/203—Details of error rate determination, e.g. BER, FER or WER
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
Abstract
The application provides a method and a device for reading an input signal. When an input signal is received, acquiring the average period of the input signal according to the lead code of the input signal, and adjusting the size of the sliding window according to the average period. And then, reading the input signal by utilizing the adjusted sliding window. And in the process of reading the input signals, adjusting the size of the sliding window again according to the input signals read in real time. In the method, the average period of the input signal is obtained according to the preamble of the input signal, and the size of the sliding window is adjusted according to the average period of the input signal, so that the size of the sliding window is closer to the average period of the input signal. Moreover, when the input signal is read by using the sliding window, the size of the sliding window is adjusted again according to the deviation condition in the input signal in real time, so that the influence caused by signal deviation is reduced, and the reading receiving capability of the input signal and the robustness of a signal reading circuit are improved.
Description
Technical Field
The present disclosure relates to the field of signal processing technologies, and in particular, to a method and an apparatus for reading an input signal.
Background
With the development of wireless charging technology, the popularization of wireless chargers is more and more extensive. In addition to the energy interaction with the receiver, the data signal interaction is accompanied when the wireless charging transmitter is operating. Information interaction is completed between the transmitter and the receiver based on a QI protocol under a WPC (wireless power consortium) flag, communication is performed between the receiver and the transmitter through ASK (Amplitude Shift Keying), information received by the transmitter is obtained after ASK encoding and modulation are performed by the receiver, and thus the transmitter also needs to perform ASK demodulation on a received data signal based on the QI protocol to complete reading of the data signal.
In the prior art, the information exchange between the transmitter and the receiver is usually directly performed based on QI protocol, which means that the sampling period of the data signal by the transmitter is the standard sampling period defined by the protocol. However, in the actual information communication process, there are many noises in the signal, so the period of the data signal often changes, and there is a certain deviation from the standard period specified in the QI protocol.
Therefore, how to reduce the influence of noise in the signal on the signal reading and reduce the error rate of the signal reading when the transmitter reads the input signal based on the QI protocol becomes a technical problem urgently needed to be solved by those skilled in the art.
Disclosure of Invention
In view of the foregoing problems, the present application provides a method and an apparatus for reading an input signal.
The embodiment of the application discloses the following technical scheme:
in a first aspect, the present application discloses a method for reading an input signal, including:
acquiring an average period of an input signal according to a lead code of the input signal;
adjusting the size of a sliding window according to the average period of the input signal;
reading the input signal by using the adjusted sliding window;
and adjusting the size of the sliding window again according to the input signal read in real time.
Optionally, the obtaining an average period of the input signal according to the preamble of the input signal includes:
and according to the lead code of the input signal, carrying out half-cycle sampling on the input signal through a preset half-cycle sampling rule to obtain the average cycle of the input signal.
Optionally, the adjusting the size of the sliding window again according to the input signal read in real time includes:
and adjusting the size of the sliding window again through a preset compensation algorithm according to the input signal read in real time.
Optionally, before obtaining the average period of the input signal according to the preamble of the input signal, the method further includes:
judging whether a lead code of the input signal is valid;
and if the 11 th data to the 25 th data of the preamble of the input signal are 1, determining that the preamble of the input signal is valid.
Optionally, the adjusting the size of the sliding window according to the average period of the input signal includes:
and adjusting the size of the sliding window to be equal to the average period of the input signal according to the average period of the input signal.
In a second aspect, the present application discloses an apparatus for reading an input signal, comprising: a period obtaining module, configured to obtain an average period of an input signal according to a preamble of the input signal;
the first adjusting module is used for adjusting the size of the sliding window according to the average period of the input signal;
the signal reading module is used for reading the input signal by utilizing the adjusted sliding window;
and the second adjusting module is used for adjusting the size of the sliding window again according to the input signal read in real time.
Optionally, the period obtaining module is configured to:
and according to the lead code of the input signal, carrying out half-cycle sampling on the input signal through a preset half-cycle sampling rule to obtain the average cycle of the input signal.
Optionally, the second adjusting module is configured to:
and adjusting the size of the sliding window again through a preset compensation algorithm according to the input signal read in real time.
Optionally, the apparatus further comprises: a judgment module; the judging module comprises:
judging whether a lead code of the input signal is valid;
and if the 11 th data to the 25 th data of the preamble of the input signal are 1, determining that the preamble of the input signal is valid.
Optionally, the first adjusting module is configured to:
and adjusting the size of the sliding window to be equal to the average period of the input signal according to the average period of the input signal.
Compared with the prior art, the method has the following beneficial effects: the application provides a method and a device for reading an input signal. When an input signal is received, acquiring the average period of the input signal according to the lead code of the input signal, and adjusting the size of the sliding window according to the average period. And then, reading the input signal by utilizing the adjusted sliding window. And in the process of reading the input signals, adjusting the size of the sliding window again according to the input signals read in real time. In the method, the average period of the input signal is obtained according to the preamble of the input signal, and the size of the sliding window is adjusted according to the average period of the input signal, so that the size of the sliding window is closer to the average period of the input signal. Moreover, when the input signal is read by using the sliding window, the size of the sliding window is adjusted again according to the deviation condition in the input signal in real time, so that the influence caused by signal deviation is reduced, and the reading receiving capability of the input signal and the robustness of a signal reading circuit are improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic flowchart illustrating a method for reading an input signal according to an embodiment of the present disclosure;
fig. 2 is a signal sampling diagram of a method for reading an input signal according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a device for reading an input signal according to an embodiment of the present disclosure.
Detailed Description
As described above, the transmitter and the receiver typically interact based on the standard sampling period established by the QI protocol. However, in the actual information interaction process, a lot of noise often exists in the signal, so that the period of the data signal changes frequently, and a certain deviation exists between the period and the standard sampling period specified in the QI protocol, and therefore, sampling of the data signal according to the standard sampling period specified in the protocol causes deviation of the received signal, and the error rate is large.
The inventor provides a method and a device for reading an input signal through research. When an input signal is received, acquiring the average period of the input signal according to the lead code of the input signal, and adjusting the size of the sliding window according to the average period. And then, reading the input signal by utilizing the adjusted sliding window. And in the process of reading the input signals, adjusting the size of the sliding window again according to the input signals read in real time. In the method, the average period of the input signal is obtained according to the preamble of the input signal, and the size of the sliding window is adjusted according to the average period of the input signal, so that the size of the sliding window is closer to the real period of the input signal. And when the input signal is read by using the sliding window, the size of the sliding window is adjusted again according to the deviation condition in the input signal in real time, so that the influence caused by signal deviation is reduced, and the receiving capability of the input signal and the robustness of a receiving circuit are improved.
In order to make those skilled in the art better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
Method embodiment
Referring to fig. 1, which is a schematic flow chart of a method for reading an input signal provided in the present application, specifically including:
s101: and acquiring the average period of the input signal according to the preamble of the input signal.
In the QI protocol, the protocol requires that the preamble of the input signal must be 11 to 25 consecutive 1 s. Therefore, the average period of the communication data can be deduced according to the data received by the preamble, and the subsequently received data can be calibrated by using the average period.
In the signal sampling process, in order to improve the accuracy of signal sampling, the half-cycle sampling is carried out on the input signal through a preset half-cycle sampling rule, so that the average cycle of the input signal is obtained. The sampling rule of the half-cycle sampling can be described by the following formula:
the sampling range of the sampling points is as follows:
wherein the content of the first and second substances,
a period value representing the end point of the detection,
indicating the standard sampling period specified by the QI protocol,
which represents the average period of the data signal measured during the reception of the past signal.
Referring to fig. 2, which is a signal sampling diagram of a method for reading an input signal according to an embodiment of the present application, the above equations may be further understood with reference to fig. 2. If the actually measured period of the input signal is between the minimum period value and the maximum period value, the obtained data signal is considered to be a valid data signal, and the period of the data signal is obtained according to the preamble of the obtained data signal.
Step S102: and adjusting the size of the sliding window according to the average period of the input signal.
After the average period of the input signal is obtained, the size of a sliding window for signal sampling is adjusted according to the average period of the input signal, specifically, in the process of adjusting the size of the sliding window, the size of the sliding window can be adjusted to be equal to the average period of the input signal, and if the size of the sliding window is not equal to the average period of the input signal, the size of the sliding window is adjusted again until the size of the sliding window is equal to the average period of the input signal.
Step S103: and reading the input signal by utilizing the adjusted sliding window.
After the size of the sliding window is adjusted, the sliding window is used for reading the input signal, the size of the sliding window is equal to the average period of the input signal, the size of the sliding window can be closer to the actual period of the input signal through adjusting the size of the sliding window, and the reading and receiving capacity of the input signal is improved.
Step S104: and adjusting the size of the sliding window again according to the input signal read in real time.
In the process of reading the input signal by using the sliding window, sometimes the data signal is interfered by environmental factors, the period of the data signal still deviates, and the condition of overlarge period or overlarge period occurs. Therefore, in order to influence the real-time change of the signal in the process of reading the data signal, in the present application, the size of the sliding window is adjusted again according to the input signal read in real time.
Specifically, the size of the sliding window may be adjusted by a preset compensation algorithm, and the preset compensation algorithm may be described by the following formula:
wherein, the first and the second end of the pipe are connected with each other,
in order to compensate for the coefficients of the coefficients,
the period of compensation, i.e. the size of the sliding window that needs to be adjusted, needs to be adjusted.
Is a signal period threshold that represents the maximum number of data signal periods that can be reached.
In order to obtain the size of the sliding window according to the average period of the input signal before the data signal is read,
is a level windowing period.
The size of the sliding window needing to be adjusted can be obtained through a preset compensation algorithm, and the sliding window size can be used for adjusting the size of the sliding window and adjusting the period of receiving the next data signal, so that the signal deviation condition occurring when the data signal is read can be responded, the change of the period of the data signal can be tracked in real time, the size of the sliding window can be adjusted dynamically, the reading and receiving capacity of the data signal is improved, and the receiving range of the data signal is improved remarkably.
As an optional implementation manner, before step S101, the method further includes:
and judging whether the lead code of the input signal is effective or not.
If 11 th data to 25 th data of the preamble of the input signal are 1, determining that the preamble of the input signal is valid.
Before calculating the average period of the input signal according to the preamble of the input signal, the validity of the preamble of the input signal needs to be judged, if the 11 th data to the 25 th data of the preamble of the input signal are 1, the preamble of the input signal is determined to be valid, if the 11 th data to the 25 th data of the preamble of the input signal are not 1, the input preamble is judged to be invalid, and the input signal is not read. By judging the validity of the lead code of the input signal, the accuracy of the average period of the obtained input signal can be improved, and therefore the quality and the efficiency of reading the input signal are improved.
The embodiment of the application provides a method for reading an input signal. When an input signal is received, acquiring the average period of the input signal according to the lead code of the input signal, and adjusting the size of the sliding window according to the average period. And then, reading the input signal by utilizing the adjusted sliding window. And in the process of reading the input signals, adjusting the size of the sliding window again according to the input signals read in real time. In the method, the average period of the input signal is obtained according to the preset half-cycle sampling rule and the preamble of the input signal, and the size of the sliding window is adjusted according to the average period of the input signal, so that the size of the sliding window is equal to the average period of the input signal. And when the input signal is read by using the sliding window, the size of the sliding window is adjusted again by using a preset compensation algorithm according to the deviation condition in the input signal in real time, so that the influence caused by signal deviation is reduced. The size of the sliding window is adjusted by using a half-cycle sampling rule in advance, so that the size of the sliding window is equal to the average cycle of the data signal, real-time change of the data signal is tracked in the data reading process, the size of the sliding window is adjusted again by using a preset compensation algorithm, the sliding window can read the data signal beyond a standard cycle specified by a protocol, and the reading and receiving capacity of the input signal and the robustness of a receiving circuit are improved.
In the following, a reading apparatus for an input signal according to an embodiment of the present application is described, and a reading apparatus for an input signal described below and a reading method for an input signal described above may be referred to correspondingly.
Referring to fig. 3, which is a schematic structural diagram of an apparatus for reading an input signal according to an embodiment of the present application, as shown in fig. 3, the apparatus includes:
a period obtaining module 100, configured to obtain an average period of an input signal according to a preamble of the input signal;
a first adjusting module 200, configured to adjust a size of the sliding window according to an average period of the input signal;
a signal reading module 300, configured to perform signal reading on the input signal by using the adjusted sliding window;
the second adjusting module 400 is configured to adjust the size of the sliding window again according to the input signal read in real time.
Optionally, the period obtaining module is configured to:
and according to the lead code of the input signal, carrying out half-cycle sampling on the input signal through a preset half-cycle sampling rule to obtain the average cycle of the input signal.
Optionally, the second adjusting module is configured to:
and adjusting the size of the sliding window again through a preset compensation algorithm according to the input signal read in real time.
Optionally, the apparatus further comprises: a judgment module; the judging module comprises:
judging whether the lead code of the input signal is effective or not;
if 11 th data to 25 th data of the preamble of the input signal are 1, determining that the preamble of the input signal is valid.
Optionally, the first adjusting module is configured to:
and adjusting the size of the sliding window to be equal to the average period of the input signal according to the average period of the input signal.
The embodiment provides a reading device of an input signal. When an input signal is received, acquiring the average period of the input signal according to the lead code of the input signal, and adjusting the size of the sliding window according to the average period. And then, reading the input signal by utilizing the adjusted sliding window. And in the process of reading the input signals, adjusting the size of the sliding window again according to the input signals read in real time. In the method, the average period of the input signal is obtained according to the preamble of the input signal, and the size of the sliding window is adjusted according to the average period of the input signal, so that the size of the sliding window is closer to the average period of the input signal. Moreover, when the input signal is read by using the sliding window, the size of the sliding window is adjusted again according to the deviation condition in the input signal in real time, so that the influence caused by signal deviation is reduced, and the reading receiving capability of the input signal and the robustness of a signal reading circuit are improved.
It should be noted that, in this specification, each embodiment is described in a progressive manner, and the same and similar parts between the embodiments are referred to each other, and each embodiment focuses on differences from other embodiments. In particular, the method and apparatus embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The embodiments of the method and apparatus described above are merely illustrative, and units described as separate parts may or may not be physically separate, and parts suggested as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement without inventive effort.
The above description is only one specific embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A method for reading an input signal, comprising:
acquiring an average period of an input signal according to a lead code of the input signal;
adjusting the size of a sliding window according to the average period of the input signal;
reading the input signal by using the adjusted sliding window;
and adjusting the size of the sliding window again according to the input signal read in real time.
2. The method according to claim 1, wherein the obtaining an average period of the input signal according to a preamble of the input signal specifically comprises:
and according to the lead code of the input signal, carrying out half-cycle sampling on the input signal through a preset half-cycle sampling rule to obtain the average cycle of the input signal.
3. The method of claim 1, wherein the resizing the sliding window again according to the input signal read in real time comprises:
and adjusting the size of the sliding window again through a preset compensation algorithm according to the input signal read in real time.
4. The method of claim 1, wherein before obtaining the average period of the input signal according to the preamble of the input signal, the method further comprises:
judging whether the lead code of the input signal is effective or not;
and if the 11 th data to the 25 th data of the preamble of the input signal are 1, determining that the preamble of the input signal is valid.
5. The method of claim 1, wherein the adjusting the size of the sliding window according to the average period of the input signal comprises:
and adjusting the size of the sliding window to be equal to the average period of the input signal according to the average period of the input signal.
6. An apparatus for reading an input signal, comprising:
the period acquisition module is used for acquiring the average period of the input signal according to the lead code of the input signal;
the first adjusting module is used for adjusting the size of the sliding window according to the average period of the input signal;
the signal reading module is used for reading the input signal by utilizing the adjusted sliding window;
and the second adjusting module is used for adjusting the size of the sliding window again according to the input signal read in real time.
7. The apparatus of claim 6, wherein the period obtaining module is configured to:
and according to the lead code of the input signal, carrying out half-cycle sampling on the input signal through a preset half-cycle sampling rule to obtain the average cycle of the input signal.
8. The apparatus of claim 6, wherein the second adjusting module is configured to:
and adjusting the size of the sliding window again through a preset compensation algorithm according to the input signal read in real time.
9. The apparatus of claim 6, further comprising: a judgment module; the judging module comprises:
judging whether a lead code of the input signal is valid;
and if the 11 th data to the 25 th data of the preamble of the input signal are 1, determining that the preamble of the input signal is valid.
10. The apparatus of claim 6, wherein the first adjusting module is configured to:
and adjusting the size of the sliding window to be equal to the average period of the input signal according to the average period of the input signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211519213.6A CN115603863A (en) | 2022-11-30 | 2022-11-30 | Input signal reading method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211519213.6A CN115603863A (en) | 2022-11-30 | 2022-11-30 | Input signal reading method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115603863A true CN115603863A (en) | 2023-01-13 |
Family
ID=84852714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211519213.6A Pending CN115603863A (en) | 2022-11-30 | 2022-11-30 | Input signal reading method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115603863A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6944454B1 (en) * | 1998-12-08 | 2005-09-13 | Sk Telecom Co., Ltd. | Method and apparatus for expanding cell coverage in mobile communication system |
| CN102939728A (en) * | 2009-12-18 | 2013-02-20 | 三星电子株式会社 | Apparatus and method for transmitting preamble in broadband wireless communication system |
| CN107040026A (en) * | 2017-05-11 | 2017-08-11 | 深圳如果技术有限公司 | Wireless charging method and device, micro-base station and mobile terminal |
| CN107483380A (en) * | 2017-09-12 | 2017-12-15 | 中国电子科技集团公司第四十研究所 | A kind of OQPSK signal high-frequency offset carrier synchronous method based on multistage architecture |
| CN109818713A (en) * | 2019-01-24 | 2019-05-28 | 浙江大华技术股份有限公司 | Miller code coding/decoding method, device and the equipment and storage medium of subcarrier modulation |
| US20190393734A1 (en) * | 2018-06-20 | 2019-12-26 | Apple Inc. | Methods and Apparatus for Performing Demodulation using Maximum Likelihood Sequence Matching in a Wireless Charging Device |
| CN113098809A (en) * | 2021-04-14 | 2021-07-09 | 中电海康无锡科技有限公司 | Software self-adaptive decoding method and device and wireless charging system |
| US20210242894A1 (en) * | 2019-10-30 | 2021-08-05 | Silicon Laboratories Inc. | Apparatus for Receiver Using Multiple Modulation Schemes and Associated Methods |
| WO2022204998A1 (en) * | 2021-03-30 | 2022-10-06 | 北京小米移动软件有限公司 | Capability reporting method and device and information configuration method and device |
-
2022
- 2022-11-30 CN CN202211519213.6A patent/CN115603863A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6944454B1 (en) * | 1998-12-08 | 2005-09-13 | Sk Telecom Co., Ltd. | Method and apparatus for expanding cell coverage in mobile communication system |
| CN102939728A (en) * | 2009-12-18 | 2013-02-20 | 三星电子株式会社 | Apparatus and method for transmitting preamble in broadband wireless communication system |
| CN107040026A (en) * | 2017-05-11 | 2017-08-11 | 深圳如果技术有限公司 | Wireless charging method and device, micro-base station and mobile terminal |
| CN107483380A (en) * | 2017-09-12 | 2017-12-15 | 中国电子科技集团公司第四十研究所 | A kind of OQPSK signal high-frequency offset carrier synchronous method based on multistage architecture |
| US20190393734A1 (en) * | 2018-06-20 | 2019-12-26 | Apple Inc. | Methods and Apparatus for Performing Demodulation using Maximum Likelihood Sequence Matching in a Wireless Charging Device |
| CN109818713A (en) * | 2019-01-24 | 2019-05-28 | 浙江大华技术股份有限公司 | Miller code coding/decoding method, device and the equipment and storage medium of subcarrier modulation |
| US20210242894A1 (en) * | 2019-10-30 | 2021-08-05 | Silicon Laboratories Inc. | Apparatus for Receiver Using Multiple Modulation Schemes and Associated Methods |
| WO2022204998A1 (en) * | 2021-03-30 | 2022-10-06 | 北京小米移动软件有限公司 | Capability reporting method and device and information configuration method and device |
| CN113098809A (en) * | 2021-04-14 | 2021-07-09 | 中电海康无锡科技有限公司 | Software self-adaptive decoding method and device and wireless charging system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101094002A (en) | DC offset removal apparatus and DC offset removal method | |
| US20130188746A1 (en) | Frequency shift compensation, such as for use in a wireless meter reading environment | |
| CN102624425A (en) | Power line communication apparatus and noise detection method thereof | |
| WO2023123688A1 (en) | Signal transmission method, signal transmission apparatus, and electronic device | |
| CN105430732A (en) | WIFI transmitting power regulation method, terminal and system | |
| CN102164018A (en) | Receiving data compensation method to improve data receiving rate and receiving modem circuit thereof | |
| CN107404450A (en) | The method and device of demodulated signal | |
| CN101404564B (en) | Soft demodulation method for 8PSK Gray mapping | |
| CN115603863A (en) | Input signal reading method and device | |
| US8369457B2 (en) | Demodulation apparatus, demodulation method, and electronic device | |
| CN108965194B (en) | Method and device for signal phase recovery | |
| CN103716271B (en) | Self-adapting detecting valve value compensation in communication system based on binary frame | |
| CN115333904A (en) | Method, device, equipment and medium for correcting Doppler frequency shift | |
| CN111884754B (en) | Cell search method, chip and readable storage medium | |
| US11601207B2 (en) | Method for measuring power of non-constant envelope modulated signal, and electronic device | |
| CN112134825B (en) | Low-complexity high-performance GFSK baseband timing synchronization method | |
| CN114362906A (en) | Rate matching method, device, electronic equipment and readable medium | |
| CN103905072A (en) | Wireless communication receiver, interference elimination method and device thereof and signal demodulation method | |
| US10243726B2 (en) | Signal transceiving device and methods for detecting a synchronization point in a signal | |
| CN113395763A (en) | NB terminal high-precision positioning method and system based on 5G/NB-IoT cluster node information fusion | |
| CN111765964A (en) | Numerical value correction method based on cloud storage | |
| CN112235220B (en) | Modulation index adjusting method and device and terminal equipment | |
| CN116781213B (en) | Coding modulation parameter determining method and service equipment based on index modulation transmission | |
| CN114915357B (en) | Method for detecting interference frequency points and electronic equipment | |
| CN116505978B (en) | Bluetooth signal processing method and device, electronic equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230113 |