CN107861635B - Multifunctional keyboard - Google Patents
Multifunctional keyboard Download PDFInfo
- Publication number
- CN107861635B CN107861635B CN201711264551.9A CN201711264551A CN107861635B CN 107861635 B CN107861635 B CN 107861635B CN 201711264551 A CN201711264551 A CN 201711264551A CN 107861635 B CN107861635 B CN 107861635B
- Authority
- CN
- China
- Prior art keywords
- control
- signal
- keyboard
- light
- gate
- 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.)
- Active
Links
- 238000010586 diagram Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/325—Display of status information by lamps or LED's
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Quality & Reliability (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The utility model provides a multifunctional keyboard, includes a USB HUB controller, a keyboard controller, a control chip, an AND gate and a display lamp, and this keyboard controller is used for exporting a locking signal to this AND gate according to the state of keyboard, and this control chip receives a cue signal of computer output and exports corresponding control signal to this AND gate through this USB HUB controller, and this AND gate exports corresponding level signal to this display lamp according to locking signal and the control signal that receives. The multifunctional keyboard receives the level signal output by the AND gate through the display lamp, thereby displaying the current running state of the computer.
Description
Technical Field
The present invention relates to a keyboard, and more particularly, to a multifunctional keyboard.
Background
The existing keyboard is generally provided with three monochromatic lamps, which are respectively in capital locking, digital locking and rolling locking, but the three monochromatic lamps only display the working state of the keyboard and cannot display the working state of a computer.
Disclosure of Invention
In view of the above, the present invention provides a multifunctional keyboard capable of displaying the working state of a computer.
A multifunction keyboard, comprising:
a USB HUB controller;
a keyboard controller connected with the USB HUB controller and used for outputting a locking signal according to the state of the keyboard;
the control chip receives a prompt signal output by the computer through the USB HUB controller, and comprises a first control pin, and when the first prompt signal output by the computer is received, the first control pin of the control chip outputs a first control signal with alternating high and low levels; when the first prompt signal output by the computer is not received, the first control pin of the control chip outputs a first control signal with a high level;
the AND gate is used for receiving the locking signal output by the keyboard controller and the first control signal output by the control chip and outputting a corresponding level signal according to the received locking signal and the first control signal;
and the display lamp comprises a first light emitting diode and is used for receiving the level signal output by the AND gate and controlling the light emitting state of the first light emitting diode according to the received level signal.
Compared with the prior art, the multifunctional keyboard provided by the invention has the advantages that the plurality of USB interfaces are expanded through the USB HUB controller, so that the computer transmits the prompt information to the keyboard controller and the control chip through the plurality of USB interfaces, and the display lamp emits light after the processing of the AND gate, so that the working state of the computer is displayed.
Drawings
FIG. 1 is a schematic structural diagram of a multifunctional keyboard according to a preferred embodiment of the present invention.
Description of the main elements
And gate U1
Red LED D1
Green light emitting diode D2
Resistors R1-R2
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
Referring to fig. 1, the preferred embodiment of the multifunctional keyboard of the present invention includes a USB HUB controller 10, a keyboard controller 20, a control chip 30, a display lamp 40 and an and gate U1. In this embodiment, the USB HUB controller 10 is connected to the computer 50 via a USB bus.
In this embodiment, taking the keyboard controller 20 controlling the capitalization locking function as an example, the keyboard controller 20 is connected to a USB interface of the USB HUB controller 10 via a USB bus and outputs a locking signal to the and gate U1.
The control Chip 30 is a PSOC Chip (Programmable System-On-Chip), the control Chip 30 includes two control pins GPIO1 and GPIO2, and the control Chip 30 is configured to receive prompt information sent by the computer 50 and output corresponding control signals through the pins GPIO1 and GPIO2 according to the corresponding prompt information.
In this embodiment, two input terminals of the and gate U1 are respectively connected to the pin GPIO1 of the control chip 30 and the keyboard controller 20, so as to respectively receive the control signal output by the control chip and the lock signal output by the keyboard controller 20. The power terminal of the and gate U1 is connected to a power VCC and the ground terminal is grounded.
In this embodiment, the original single-color capital locking indicator lamp on the keyboard is designed as the two-color display lamp 40, so as to display different states of the computer. The computer 50 transmits information indicating various states of the computer, such as power on/off, and various reminders, such as mail reminders, etc., to the control chip 30 through the USB Hub controller 10, and the control chip 30 controls the GPIO1 and the GPIO2 to output different control signals according to the received signals. The other two lights on the keyboard can also be used in the same way to introduce more functionality. The display lamp 40 includes a red led D1 and a green led D2, the cathode of the red led D1 is connected to the pin GPIO2 of the control chip 30, and the anode of the red led D1 is connected to the power VCC through a resistor R1. The cathode of the green led D2 is connected to the output terminal of the and gate U1, and the anode of the green led D2 is connected to the power VCC through a resistor R2.
The working principle of the multifunctional keyboard of the invention is described as follows:
when the computer 50 is not locked in a capitalization mode and the computer 50 outputs a first prompt signal, if the computer 50 sends out a mail prompt, the first prompt signal is output, the control chip 30 receives the first prompt signal output from the computer 50, the keyboard controller 20 outputs a high-level locking signal to the and gate U1, and the control chip 30 outputs a first control signal with a frequency of 5HZ and alternating high and low levels to the and gate U1 through the pin GPIO 1. According to the circuit principle of logic elements, the output terminal of the and gate U1 will output a signal with alternating high and low levels to the green led D2, so that the green led D2 flickers.
When the computer 50 is not locked by capitalization and the computer 50 does not output the first prompt signal, the keyboard controller 20 outputs a high-level lock signal to the and gate U1, the pin GPIO1 of the control chip 30 outputs a high-level first control signal to the and gate U1, both input terminals of the and gate U1 receive the high-level signal and then output a high-level signal to the green led D2, and the green led D2 is turned off.
When the computer 50 is locked in upper case, no matter whether the computer 50 has the first prompt signal output or not, the keyboard controller 20 will always output a low level lock signal to the and gate U1, and according to the circuit principle of logic elements, the and gate U1 will always output a low level signal to the green led D2, so that the green led D2 is always in the light-emitting state.
When the computer 50 outputs a second prompt signal, for example, when the computer 50 has an error in operation, the control chip 30 receives the second prompt signal and outputs a low-level second control signal to the red led D1 through the GPIO2, so that the red led D1 is in a light-emitting state.
The multifunctional keyboard transmits the prompt information to the keyboard controller 20 and the control chip 30 through the extended USB interface of the USB HUB controller 10, and the display lamp 40 emits light to prompt after the prompt information is processed by the and gate U1, so as to display different working conditions of the computer 50.
Claims (3)
1. A multifunction keyboard, comprising:
a USB HUB controller;
a keyboard controller connected with the USB HUB controller and used for outputting a locking signal according to the state of the keyboard;
the control chip receives a prompt signal output by the computer through the USB HUB controller, and comprises a first control pin and a second control pin, wherein when the first prompt signal output by the computer is received, the first control pin of the control chip outputs a first control signal with alternating high and low levels; when the first prompt signal output by the computer is not received, the first control pin of the control chip outputs a first control signal with a high level, when the control chip receives a second prompt signal output by the computer, the second control pin of the control chip outputs a second control signal with a low level, and when the control chip does not receive the second prompt signal output by the computer, the second control pin of the control chip outputs a second control signal with a high level;
the AND gate is used for receiving the locking signal output by the keyboard controller and the first control signal output by the control chip and outputting a corresponding level signal according to the received locking signal and the first control signal;
and the display lamp comprises a first light-emitting diode and a second light-emitting diode, the first light-emitting diode is used for receiving the level signal output by the AND gate and controlling the light-emitting state of the first light-emitting diode according to the received level signal, and the second light-emitting diode is used for being in a light-emitting state after receiving the second control signal of the low level or being in a light-off state after receiving the second control signal of the high level.
2. The multifunction keyboard of claim 1, wherein: the two input ends of the AND gate are respectively connected with the keyboard controller and the first control pin of the control chip, the power supply end of the AND gate is connected with the power supply, the grounding end is grounded, the output end of the AND gate is connected with the cathode of the first light-emitting diode, the anode of the first light-emitting diode is connected with the power supply through a first resistor, the cathode of the second light-emitting diode is connected with the second control pin of the control chip, and the anode of the second light-emitting diode is connected with the power supply through a second resistor.
3. The multifunction keyboard of claim 1, wherein: the control chip is a PSOC chip.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017203518276 | 2017-04-06 | ||
| CN201720351827 | 2017-04-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107861635A CN107861635A (en) | 2018-03-30 |
| CN107861635B true CN107861635B (en) | 2020-11-13 |
Family
ID=61704643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711264551.9A Active CN107861635B (en) | 2017-04-06 | 2017-12-05 | Multifunctional keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107861635B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09325844A (en) * | 1996-06-06 | 1997-12-16 | Hitachi Ltd | Wireless keyboard system |
| CN1349165A (en) * | 2000-10-12 | 2002-05-15 | 刘传芳 | The Method of Displaying the Causes of Computer Hardware Faults by Using Light Emitting Diodes on the Keyboard |
| CN2462477Y (en) * | 2000-12-18 | 2001-11-28 | 联想(北京)有限公司 | Keyboard with networking indicator |
| CN102541717A (en) * | 2010-12-28 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Network status displaying system and method |
-
2017
- 2017-12-05 CN CN201711264551.9A patent/CN107861635B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107861635A (en) | 2018-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8456172B2 (en) | Measurement circuit for capacitor | |
| US20170060214A1 (en) | Indication system and electronic device utilizing the same | |
| CN102539895A (en) | USB (universal serial bus) port detecting circuit | |
| US10635147B2 (en) | Detecting system and detection circuit for detecting health status of backup power supply module | |
| CN103313459A (en) | Control device for indicating lamp | |
| US7839090B2 (en) | Drive circuit for driving indicators in computer system | |
| CN102761421A (en) | Network indicating device | |
| CN107861635B (en) | Multifunctional keyboard | |
| CN109451759B (en) | Remote controller and remote control method | |
| CN106683604A (en) | LED display and key detection multiplexing circuit | |
| US20120242347A1 (en) | Checking circuit for serial port connectors | |
| CN101532875A (en) | Light intensity test device | |
| CN114095478A (en) | Address signal processing device for LED lamp | |
| CN104901679A (en) | New input detection circuit | |
| CN111756437A (en) | Optical module and monitoring method thereof | |
| US20160033584A1 (en) | Method of forming a sequencing system and structure therefor | |
| US20140164663A1 (en) | Peripheral component interconnect adapter and computer using same | |
| US9176172B2 (en) | Power level identification circuit, power level flag circuit and power level supply system | |
| CN101464473B (en) | Electric voltage exception protection device used for circuit board test | |
| US20140347063A1 (en) | Fan test device | |
| US8001312B2 (en) | Circuit board system | |
| TWI408548B (en) | Quantification indicating circuit | |
| CN211505724U (en) | Power supply device type number detection circuit and electronic device | |
| CN204390954U (en) | Vehicle-mounted button indicating circuit and vehicle intelligent terminal | |
| CN203191518U (en) | Key detection circuit combining LED driving and infrared remote control receiving functions |
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 | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Yao Yuexiang Document name: Notification of Approving Refund |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201021 Address after: 312400 56 Yao Ao village, Sanjie Town, Shengzhou City, Shaoxing, Zhejiang Applicant after: Shengzhou Sen Hui Intellectual Property Operation Co.,Ltd. Address before: 315000, No. 519, Zhuang Avenue, Ningbo, Zhejiang Applicant before: Yao Yuexiang |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220805 Address after: Room 401, floor 1, building 4, yard 5, Jiangtai Road, Chaoyang District, Beijing 100020 Patentee after: BEIJING JUEWEI TECHNOLOGY CO.,LTD. Address before: 312400 56 Yao Ao village, Sanjie Town, Shengzhou City, Shaoxing, Zhejiang Patentee before: Shengzhou Sen Hui Intellectual Property Operation Co.,Ltd. |