TWM474958U - Interface control circuit and related input system - Google Patents

Abstract

An interface control circuit is provided for controlling signal transmission between an input device and a host device. The interface control circuit includes a detection module, an information modification module and a signal adjustment module. The detection module is utilized for detecting identification information provided by the input device to generate a detection result, wherein the identification information includes information about an operating mode of the input device. The information modification module is arranged to determine whether to modify the identification information according to the detection result. The signal adjustment module is utilized for adjusting an input signal provided by the input device to the host device when the information modification module determines to modify the identification information.

Description

Interface control circuit and related input system

This creation is about interface control, especially an interface control circuit with the ability to modify information, and an input system using this interface control circuit.

In a typical personal computer system, a user transmits a control signal to a host through an input device (such as a mouse, a keyboard, a joystick, a game player, etc.) externally connected to the host. Typically, these input devices are compatible with specific signal transmission standards and communicate with the host based on certain transmission mechanisms and rules. In general, the signal transmission standard defines the mode of operation for each type of input device. In different modes of operation, the input device may communicate with the host at different signal transmission rates. In the common Universal Serial Bus (USB) standard, several different levels of operation are defined, including full speed, low speed, and high speed. Wait. Considering the user's general use situation, most of the human-machine interface devices such as the mouse, keyboard, joystick, and gamepad are operating in the low speed mode.

However, with the advancement of personal computer systems, users can perform more diverse applications in personal computer systems. In these applications, input devices operating in low speed mode may not be sufficient for the user. For example, in a game application, users often need to issue control commands to the host frequently in order to cope with the ever-changing game content. At this time, operating the mouse, keyboard, joystick, and game handle in the low speed mode may not immediately transmit the user's control signal to the host, causing inconvenience to the user.

In order to solve the above problems, one of the purposes of the present invention is to provide an interface control circuit that can change the signal transmission rate of an input device. The interface control circuit determines the current operation mode of the input device according to the identification information provided by the input device. If the input device is currently operating in a mode in which the signal transmission frequency is low, the interface control circuit of the author modifies the identification information, so that the master device recognizes the input device to operate in a high speed mode, thereby accessing the device at a higher rate. Input device, thereby increasing the signal transmission rate of the input device. In this way, the user can use the original input device to achieve high-speed transmission.

An embodiment of the present invention provides an interface control circuit for controlling signal transmission between an input device and a host device. The interface control circuit comprises: a detection module, an information modification module and a signal adjustment module. The detection module is configured to detect one of the identification information provided by the input device to generate a detection result. The identification information includes information indicating a mode of operation of the input device. The information modification module is coupled to the detection module, and is configured to determine whether to modify the identification information provided by the input device according to the detection result. The signal adjustment module is coupled to the information modification module for adjusting an input signal provided by the input device to the main control device after the information modification module determines to modify the identification information provided by the input device .

Another embodiment of the present invention provides an input system including: an input device and an interface control circuit. The input device is configured to perform signal transmission with a master device and provide an identification information for identification by the master device. The identification information includes information indicating a mode of operation of the input device. The interface control circuit is coupled between the input device and the main control device for transmitting the identification information to the main control device. The interface control circuit further includes: a detection module, an information modification module and a signal adjustment module. The detection module is configured to detect one of the identification information provided by the input device to generate a detection result. The information modification module is coupled to the detection module, and is configured to determine whether to modify the identification information provided by the input device according to the detection result. The signal adjustment module is coupled to the information modification module for determining that the information modification module determines to modify the After inputting the identification information provided by the device, the input signal provided by the input device to the one of the main control devices is adjusted.

The advantages and spirit of this creation can be further understood by the following detailed description of the creation and the drawings.

100‧‧‧Interface control circuit

110‧‧‧Detection module

120‧‧‧Information Modification Module

130, 140‧‧‧ signal transmission interface

150‧‧‧Signal adjustment module

200, 500‧‧‧ master control unit

300‧‧‧Input device

400‧‧‧Input system

410‧‧‧ Input device

420‧‧‧Interface control circuit

Figure 1 is a schematic diagram of one embodiment of the interface control circuit of the present invention.

Figure 2 is a schematic diagram of one embodiment of an input system of the present invention.

Certain terms are used throughout the description and following claims to refer to particular elements. Those of ordinary skill in the art should understand that a hardware manufacturer may refer to the same component by a different noun. The scope of this specification and the subsequent patent application do not use the difference of the names as the means for distinguishing the elements, but the difference in function of the elements as the criterion for distinguishing. The term "including" as used throughout the specification and subsequent claims is an open term and should be interpreted as "including but not limited to". In addition, the term "coupled" is used herein to include any direct and indirect electrical connection means. Therefore, if a first device is coupled to a second device, it means that the first device can be directly electrically connected to the device. The second device is indirectly electrically connected to the second device through other devices or connection means.

Please refer to FIG. 1 , which is a schematic diagram of an embodiment of the authoring interface control circuit. The interface control circuit 100 is responsible for controlling the signal transmission between the master device 200 and the input device 300. The master device 200 can be a personal computer system or any other similar electronic system. Input device 300 can be a keyboard, mouse, joystick, gamepad or other similar human interface device.

The main control device 200 and the input device 300 perform data transmission in a similar polling manner. At regular intervals, the main control device 200 inquires whether the input device 300 has data to be transmitted. After the two confirm and communicate, the master device 200 begins to receive the data transmitted by the input device 300, which may be the corresponding correspondence generated by the user when using the keyboard, the mouse, the joystick or the game handle. Control signal. The main control device 200 determines the periodic interval of the inquiry input device 300 based on the identification information IDF provided by the input device 300. The identification information IDF indicates the operation mode preset by the input device 300, and the main control device 200 determines the period of the inquiry input device 300 according to the operation mode indicated by the identification information IDF. In an embodiment of the present invention, the input device 300 may be a USB device compatible with the USB standard, and the operation mode may be a full speed mode or a slow mode defined by the USB standard. Generally, in the full speed mode, the main control device 200 may inquire the input device 300 every 1 ms whether there is data to be transmitted, and in the slow mode, the main control device 200 may input the input every 10 ms or more. Device 300 asks. It can be seen that the preset operation mode of the input device 300 will affect the signal transmission rate between the master device 200 and the input device 300.

In order to improve the transmission efficiency between the main control device 200 and the input device 300, the interface control circuit 100 appropriately modifies the identification information IDF, which allows the main control device 200 to change the input device 300 that is originally scheduled to operate in the slow mode. Access at a faster interval. For example, the identification information IDF is modified by the interface control circuit 100, and the main control device 200 may query the input device 300 that is originally preset to the low speed mode in a period of 1 ms, so that the main control device 200 can receive the data faster. The input signal generated by the input device 300.

The interface control circuit 100 includes a detection module 110, an information modification module 120, and a signal adjustment module 150. The detection module 110 is configured to detect the identification information IDF provided by the input device 300 to generate the detection result DET. The information modification module 120 is coupled to the detection module 110 and used Based on the detection result DET, it is determined whether to modify the identification information IDF provided by the input device 300. In an embodiment, the detection module 110 detects whether the operation mode of the input device 300 indicated by the identification information IDF is the same as a first operation mode, wherein the first operation mode may be a full-speed mode, that is, detection The test module 110 determines whether the input device 300 is preset to operate in the full speed mode based on the identification information IDF. Once the identification information IDF is found to indicate that the input device 300 has been operating in the full speed mode, the detection result DET is generated, so that the information modification module 120 does not modify the identification information IDF. On the contrary, the detection result DET generated by the detection module 110 will cause the information modification module 120 to modify the identification information IDF, so that the modified identification information IDF indicates that the input device 300 operates in the full speed mode. In this way, regardless of how the master device 200 considers the input device 300 to be a device operating in the full speed mode, the input device 300 is interrogated at a faster frequency. In other embodiments of the present invention, the detection module 110 may also detect whether the mode indicated by the identification information IDF is the low speed mode, and when the identification information IDF indicates the low speed mode, the detection result DET is generated to cause the information modification. The module 120 modifies the identification information IDF. Therefore, the above first mode of operation may be a full speed mode or a low speed mode.

After the information modification module 120 modifies the identification information IDF, the signal adjustment module 150 is notified, and the signal adjustment module 150 adjusts the input signal transmitted from the input device 300 to the main control device 200, so that the input signal can conform to the full speed mode. Requirements. This is because only the master device 200 interrogates the input device 300 at a faster frequency, but the input signal transmitted by the input device 300 to the master device 200 may only meet the requirements of the low speed mode. After the adjustment of the signal adjustment module 150, the input signal can be correctly recognized by the main control device 200 as a signal in the full speed mode.

Please note that the "full speed mode" and "low speed mode" mentioned above do not limit the input device 300 to a USB device. In fact, "full speed mode" and "low speed mode" refer not only to the operation modes defined in the USB standard, but also to the operation modes defined by other signal transmission standards, which are used to represent that the input device 300 may operate at different transmission rates. In the pattern. because Thus, the input device 300 is not necessarily a USB device.

As far as the principle of the present invention is concerned, the detection module 110 only needs to modify the input information of the input device 300 in the mode with a low signal transmission frequency, and then the modification module 120 modifies the identification information IDF and adjusts the input through the signal adjustment module 150. The input signal generated by the device 300 causes the main control device 200 to recognize the input device 300 as operating in a mode with a high signal transmission frequency, and accessing the input device 300 at a higher frequency, and correctly receiving the input signal. Therefore, the interface control mechanism that is conceptually identical to the original operation principle should be regarded as the scope of this creation.

In one embodiment of the present invention, the input device 300 provides information about the mode of operation in addition to the identification information IDF, and also provides information representative of the device type to the master device 200. For example, the identification information IDF indicates whether the input device 300 is a human-machine interface device such as a keyboard, a mouse, a joystick, or a game player. The detection module 110 only generates the detection result DET to the information modification module 120 according to the operation mode indicated in the identification information IDF after determining that the input device 300 belongs to the above-mentioned type of device through the identification information IDF. It is modified to represent information representing the mode of operation of the input device 300. If the input device 300 does not belong to the device of the above-mentioned type, even if the identification information IDF indicates that the input device 300 is in the low-speed operation mode, the detection module 110 does not generate the detection result DET and the information modification module 120 recognizes Information IDF modification.

In addition, the interface control circuit 100 of the present invention further includes signal transmission interfaces 130 and 140 for connecting the input device 300 and the main control device 200, respectively. All the signals and data transmitted from the input device 300 through the signal transmission interface 130 to the interface control circuit 100, except for the identification information IDF may be modified by the information modification module 120 and the adjustment of the signal adjustment module 150, will be completely intact. It is transmitted to the main control device 200 through the signal transmission interface 140. In addition, the signal transmitted from the input device 200 to the interface control circuit 100 through the signal transmission interface 140 is not directly processed by the information modification module 120 and the signal adjustment module 150, but directly transmitted through the information modification module 120 and the signal adjustment module 150. The signal transmission interface 130 is transmitted to the input device 300.

Another embodiment of the present invention provides an input system, please refer to FIG. The input system 400 includes an input device 410 and an interface control circuit 420 for communicating with a master control unit 500 based on a control signal generated by the user controlling the input device 410. The input device 410 may be the aforementioned input device 300, and the interface control circuit 420 may be the aforementioned interface control circuit 100, and the principle is similar to that of the operation. Through the input system 400 provided by the present creation, the input device 410 uses its own sensing mechanism to detect the user's control actions and generate corresponding control commands. Thereafter, the interface control circuit 420 detects the identification information provided by the input device 410. Once the input device 410 is found to operate in the lower speed mode of operation, the interface control circuit 420 will modify the identification information and control the input device 410. The signal corresponding to the command is adjusted. In this way, the control command generated by the input device 410 can be transmitted to the main control device 500 at a higher speed, and the signal transmission efficiency between the input system 400 and the main control device 500 is improved, and the user experience is also improved.

100‧‧‧Interface control circuit

110‧‧‧Detection module

120‧‧‧Information Modification Module

130, 140‧‧‧ signal transmission interface

150‧‧‧Signal adjustment module

200‧‧‧Master control unit

300‧‧‧Input device

Claims (20)

An interface control circuit for controlling signal transmission between an input device and a main control device, comprising: a detection module for detecting one of the identification information provided by the input device to generate a detection result The identification information includes information indicating a mode of operation of the input device; and an information modification module coupled to the detection module for determining whether to modify the identification provided by the input device according to the detection result And a signal adjustment module coupled to the information modification module for adjusting the information provided by the input device to the master device after the information modification module determines to modify the identification information provided by the input device One of the input signals. The interface control circuit of claim 1, wherein the operation mode defines the input device to provide the input signal to a preset rate of the master device. The interface control circuit of claim 2, wherein the detection module detects whether the operation mode is the same as a first operation mode. The interface control circuit of claim 3, wherein when the operation mode of the input device is different from the second operation mode of the first operation mode, the detection module generates the information modification mode. The group modifies the detection result of the identification information. The interface control circuit of claim 4, wherein the information modification module modifies the operation mode included in the identification information to correspond to the first operation mode. The interface control circuit of claim 4, wherein the rate of providing the input signal to the master device by the input device defined by the second mode of operation is lower than the first operation The rate defined by the mode. The interface control circuit of claim 3, wherein when the operation mode of the input device is the same as the first operation mode, the detection module generates the information modification module to not modify the identification information. The detection result. The interface control circuit of claim 1, wherein the identification information includes information indicating a device type of the input device, and the detecting module detects whether the device type corresponds to a specific type, and When the device type corresponds to the specific type, the detection result that causes the information modification module to modify the identification information is generated. The interface control circuit of claim 1, wherein the main control device accesses the input device according to the identification information output by the interface control circuit. The interface control circuit of claim 1, wherein the input device is compatible with a Universal Serial Bus (USB) standard, and the operation mode is one of a full speed mode and a low speed mode. An input system comprising: an input device for performing signal transmission with a main control device, and providing an identification information for identification by the main control device, the identification information including information indicating a mode of operation of the input device; The control circuit is coupled between the input device and the main control device for transmitting the identification information to the main control device, and includes: a detection module for detecting one of the identification devices provided by the input device Information to generate a detection result; An information modification module is coupled to the detection module for determining whether to modify the identification information provided by the input device according to the detection result; and a signal adjustment module coupled to the information modification module The group is configured to adjust an input signal provided by the input device to the main control device after the information modification module determines to modify the identification information provided by the input device. The input system of claim 11, wherein the operation mode defines the input device to provide the input signal to a preset rate of the master device. The input system of claim 12, wherein the detecting module detects whether the operating mode is the same as a first operating mode. The input system of claim 13 wherein the detection module generates the information modification module when the operation mode of the input device is different from the second operation mode of the first operation mode. Modify the detection result of the identification information. The input system of claim 14, wherein the information modification module modifies the operation mode included in the identification information to correspond to the first operation mode. The input system of claim 14, wherein the rate of the input signal provided by the input device to the master device defined by the second mode of operation is lower than a rate defined by the first mode of operation. The input system of claim 13 wherein when the mode of operation of the input device is the same as the first mode of operation, the detecting module generates the information modifying module that does not modify the identification information. Detect results. The input system of claim 11, wherein the identification information includes information indicating a device type of the input device, and the detecting module detects whether the device type corresponds to a specific type, and when When the device type corresponds to the specific type, the detection result that causes the information modification module to modify the identification information is generated. The input system of claim 11, wherein the main control device accesses the input device according to the identification information output by the interface control circuit. The input system of claim 11, wherein the input device is compatible with a Universal Serial Bus (USB) standard, and the operation mode is one of a full speed mode and a low speed mode.