CN100447716C - Small keyboard capable of making network telephone signal transmission and call - Google Patents
Small keyboard capable of making network telephone signal transmission and call Download PDFInfo
- Publication number
- CN100447716C CN100447716C CNB2004100709531A CN200410070953A CN100447716C CN 100447716 C CN100447716 C CN 100447716C CN B2004100709531 A CNB2004100709531 A CN B2004100709531A CN 200410070953 A CN200410070953 A CN 200410070953A CN 100447716 C CN100447716 C CN 100447716C
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Abstract
The present invention relates to a small keyboard which can make network telephone signal transmission and calls and is provided with a shell body which is arranged inside with a control unit. The inner part of the control unit comprises a keyboard module and a network telephone module. The small keyboard can correctly transmit received signals to the keyboard module and the network telephone module by receiving a switching signal transmitted by an installed functional switching key or by receiving a network telephone signal which comes from long range for carrying out subsequent treatment to make the small keyboard carry out key code output and reception and transmission of the network telephone signal for achieving the goals of data input and calls.
Description
Technical field
The present invention is about a kind of keypad, especially refer to that a kind of keypad can switch between keypad operation pattern or networking telephone operator scheme, and can utilize key groups set on this keypad, finish numeral, direction, computing or function command, call, receive calls, hang up the telephone and increase and decrease the inputs such as volume that this sound source transmitter is sounded.
Background technology
Usually all be placed with phone on the general desk, computer screen, main frame, file, article such as keyboard or mouse, yet in some occasion, the user may only need input digit, or the device of moving cursor, and only can use right-hand numeric keypad of general keyboard, direction keypad or function key area, so it only can put the less a kind of small-sized defeated people's device that is referred to as keypad 1 (keyPad) of volume, as shown in Figure 1, in order to replace right-hand digital keys district of Master Keyboard, direction keypad or function button district, as shown in Figure 3, in order to avoid take too many placing space.
In addition, the telephone system of main flow all is to see through public's switched message network (publicSwitched Telephone Network at present; Be called for short PSTN), it carries out the running that switch in various loops, when closing of the circuit mainly by various countries telecommunication bureau or telecommunications company, circuit between dial-out side and take over party, just equal a special line, therefore, dial-out side must pay according to distance, if transnational communication then expense certainly will be surprising, moreover company is when handling sound, video signal or other data, must dispose other network again and transmit.And diverse network all has different transmission requirements, makes it install, safeguard and the cost of configuration is very high again.Or even the framework soft, hardware of each network is completely different, and making each network to combine mutually is quite difficult thing, so that limits its potential purposes.
But after world-wide web (Internet) rose in recent years, wideband network was laid in all parts of the world successively and is finished, and people utilize various Internet Protocols (Internet Protocol; IP) come processed voice, video signal or other data, and, on world-wide web, carry out real-time voice, video signal or other data transmission, become emerging technology then with the form of data packet.
Again, with network speech transmission technique, it is by the networking telephone (Internet ProtocolPhone), world-wide web language protocol (Voice over Internet Protocol, be called for short VOIP) and some network equipments (as: VOIP Gateway) etc. form, make the received voice of the networking telephone of dial-out side, it will be by after digitizing of world-wide web language protocol and the compression, see through world-wide web with package (Packet) form and be sent to the take over party, this take over party's the networking telephone and network equipment etc., after utilizing world-wide web language protocol reverse operating again, can hear the voice that dial-out side sends, to carry out call function, allow the user can not need to see through again traditional general telephone network (PSTN) and carry out the DR telephone talk, and can save a large sum of toll message expense.
When if company's desire is replaced with the networking telephone with black phone, at desk. on still be placed with article such as the networking telephone, computer screen, main frame, file, keyboard, keypad or mouse, make desk put the position of article, do not change the networking telephone into because of black phone, and can vacate any position, this is for the user that needs use the large tracts of land desktop, be a quite thing of puzzlement in fact, so if can with the networking telephone with (for example: keyboard) combine, believe to solve this problem must be placed in the electronic installation that uses on the desktop.
Summary of the invention
A purpose of the present invention, provide a kind of keypad that carries out network telephone signal transmission and conversation, be provided with a housing, be provided with a control module in this housing, this control module is provided with a Keysheet module, make this control module can utilize this Keysheet module that the key signal that it received is handled, again, this control module is provided with a Keysheet module, and this control module can utilize network telephone module, handle at the network telephone signal that this keypad is received, again, this housing is provided with can be for being connected to an electronic installation qi main frame) a connectivity port, this connectivity port also joins with this control module, make and to transmit signal mutually between this keypad and electronic installation, moreover, one end of this housing is provided with a source of sound receiver (as: microphone), end is provided with a sound source transmitter (as: loudspeaker) in addition, this source of sound receiver and this sound source transmitter respectively with this housing in a set coder join, this coder joins with this control module again, make this control module with its network telephone signal of handling, can be via after this coder decoding, pass to this sound source transmitter, sound, again the received sound of this source of sound receiver by this sound source transmitter, behind this coder coding, be sent to this control module and carry out subsequent treatment, send out by this connectivity port again, to finish the purpose of conversation.
Description of drawings
Fig. 1 is the outside drawing of existing keypad;
Fig. 2 is an Organization Chart of the present invention;
Fig. 3 is an outside drawing of the present invention.
Symbol description
Housing ... ... ... ... the .2 display ... ... ... ... 21
The source of sound receiver ... ... 22 another connectors ... ... ... 23
Sound source transmitter ... ... 24 light-emitting components ... ... ... 25
Coder ... ... ... 26 first mode of operation viewing areas ... 27
The rectangle circuit ... ... ... 28 second mode of operation viewing areas ... 29
Control module ... ... ... 3 Keysheet modules ... ... ... 30
Network telephone module ... ... 32 calculator modules ... ... ... 34
Key groups ... ... ... 4 numerals, direction and function key ... 40
Send key ... ... ... 41 sign of operation keys ... ... ... 42
Mode switching key ... ... 44 digital locking keys ... ... ... 46
Answer and disconnected words key ... ... 48
Embodiment
The present invention is a kind of keypad that carries out network telephone signal transmission and conversation, see also Fig. 2 and shown in Figure 3, be provided with a housing 2, be provided with a control module 3 in this housing 2, this control module 3 can be to coupled electronic component, control processing, and mainly be provided with a Keysheet module 30 and a network telephone module 32 in it, make this control module 3 can utilize this Keysheet module 30, its key signal of receiving is handled, this control module 3 can utilize this network telephone module 32, handle at its received network telephone signal, again, this housing 2 is provided with can be for a connectivity port 20 (as: universal serial bus that are connected to an electronic installation (as main frame), Universal Serial Bus, be called for short: USB), this connectivity port 20 also joins with this control module 3, make and to transmit signal mutually between this keypad and electronic installation, moreover, one end of this housing 2 is provided with a source of sound receiver 22 (as: microphone), end then is provided with a sound source transmitter 24 (as: loudspeaker) in addition, this source of sound receiver 22 and this sound source transmitter 24 respectively with this housing in a set coder 26 join, this coder 26 joins with this control module 3 again.
From the long-range network telephone signal that passes to this electronic installation, can be sent to this network telephone module 32 via this connectivity port 20, make this network telephone module 32 handle to this network telephone signal, seeing through this coder 26 again deciphers, sound to be sent to this sound source transmitter 24, maybe that this source of sound receiver 22 is received sound, behind these coder 26 codings, be sent to this network telephone module 32, carry out subsequent treatment, to be sent to this electronic installation, be sent to long-range take over party (as: networking telephone) by this electronic installation again by this connectivity port 20.
In a preferred embodiment of the present invention, be provided with a rectangle circuit 28 in this housing 2, this rectangle circuit 28 joins with this control module 3, and it is produced key pulse signal be sent to this Keysheet module 30, carry out subsequent treatment, to produce various key signal, or it is produced key pulse signal be sent to this network telephone module 32, carry out subsequent treatment, to produce the various number of broadcasting signal, or it is produced key pulse signal be sent to this control module 3, carry out subsequent treatment, to produce various control signal.
In this embodiment, these housing 2 surfaces are in the position of relative this rectangle circuit 28, be embedded with a key groups 4, this key groups includes a plurality of numerals at least, direction and function key 40 (as: 0～9,00 numerical key such as grade), a plurality of sign of operation keys 42 (as:+,-, *, sign of operation such as ÷), one mode switching key 44 and a digital locking key 46 (Number Lock Key) and are answered and disconnected words key 48, the some of these buttons stretches into this housing 3, after making these buttons be pressed, can touch this rectangle circuit 28 and produce the key pulse signal, after wherein this mode switching key 44 is pressed, this control module 3 can be according to the corresponding keys pulse signal of these these rectangle circuit 28 generations, produce one and switch signal, again according to this switching signal, this keypad is switched between a symbol input operation pattern or a networking telephone operator scheme, make this rectangle circuit 28 follow-up produce at the key pulse signal, can be sent to this Keysheet module 30 according to present operator scheme, network telephone module 32 or control module 3, carry out subsequent treatment, to finish numeral, direction, input such as computing or function command, or call, receive calls, hang up the telephone, increase and decrease the operational processes such as volume that this sound source transmitter is sounded.
So, when keypad under this symbol input operation pattern, and these numerals, direction and function key 40, after sign of operation key 42 and digital locking key 46 are pressed, this rectangle circuit 28 is sent to this Keysheet module 30 with the corresponding keys pulse signal that it produced, this Keysheet module 30 can produce various key signal, be sent to this electronic installation by this connectivity port 20 again, handle, to finish numeral, direction, input such as computing or function command, and under this state, this network telephone module 32 still can transmit network telephone signal, proceeds conversation, and can not interfere with the running of this Keysheet module 30.
In addition, when keypad under this networking telephone operator scheme, and these numerals, direction and function key 40, answer and after disconnected words key 48 exclusive disjunction symbolic keys 42 (as: additive operation symbol key and subtraction symbol key) are pressed, this rectangle circuit 28 will produce corresponding key pulse signal, and be sent to this network telephone module 32, make that this network telephone module 32 can be according to these key pulse signals, produce the various signal etc. of dialing and connecting respectively, be sent to this electronic installation or other element by this connectivity port 20 again, carry out subsequent treatment, call to finish, receive calls, hang up the telephone, increase and decrease the operational processes such as volume that this sound source transmitter is sounded.
When this key pulse signal being sent to this network telephone module 32 for further understanding this rectangle circuit 28,32 pairs of this network telephone module are dialed and connected the Signal Processing mode, be configured under the networking telephone operator scheme especially exemplified by going out this keypad, mode of operation after this additive operation symbol key and subtraction symbol key are pressed describes as follows:
After this additive operation symbol key is pressed, this rectangle circuit 28 will produce corresponding key pulse signal and be sent to this network telephone module 32, make this network telephone module 32 produce one of correspondence and dial and connect signal, and pass to this sound source transmitter 24, make this sound source transmitter 24 dial and connect signal its volume is increased according to this.And if after subtraction symbol key is pressed, this rectangle circuit 28 will produce a corresponding key pulse signal and be sent to this network telephone module 32, make this network telephone module 32 produce one of correspondence and dial and connect signal, and pass to this sound source transmitter 24, make this sound source transmitter 24 dial and connect signal its volume is turned down according to this.
And after these numerals, direction and function key 40 are pressed, this rectangle circuit 28 will produce corresponding key pulse signal and be sent to this network telephone module 32, make this network telephone module 32 produce one of correspondence and dial and connect signal, and after enough this of accumulative total dialed and connected signal, can form one group of telephone number, again by this network telephone module 32 according to this telephone number, long-range take over party dials.
Moreover, when this keypad when not conversing, if transmit a network telephone signal to this control module 3 by this connectivity port 20, this control module 3 will be by this network telephone signal, produce a notification signal, and be sent to this coder 26 and decipher, be sent to this sound source transmitter 24 again and send the tinkle of bells, in order to notify existing incoming call.Send the tinkle of bells and work as this sound source transmitter 24, when notice has incoming call, if this is answered and after disconnected words key 48 is pressed, this rectangle circuit 28 produces this corresponding key pulse signal and is sent to this network telephone module 32, make this network telephone module 32 produce one of correspondence and dial and connect signal, make this network telephone module to handle, and can utilize this sound source transmitter 24 and source of sound receiver 22 to converse at follow-up network telephone signal.
In this embodiment, this keypad is under this networking telephone pattern, this control module 3 continue for some time do not receive the key pulse signal that this rectangle circuit 28 transmitted after, this control module 3 can be automatically with this keypad by this networking telephone mode switch to symbol input operation pattern, or return to an operator scheme.
In this embodiment, the position that this housing 2 is convenient to observe thereon is provided with a display 21, this display 21 joins with this control module 3, make this control module 3 can be according to these key signals, dial and connect signal or switching signal, produce corresponding shows signal, and be sent to this display 21, make that this display 21 can be according to the corresponding display frame of this shows signal output, so, the user can observe the present mode of operation of this keypad, the numeral of being imported or dialed number etc. by this display frame.
For making this keypad can demonstrate the calling party of its network telephone signal that receives, in the present invention, this control module 3 can utilize 32 pairs of these network telephone signals of this network telephone module, resolve, come source material (as: data such as calling party's network site, telephone number) with what obtain the calling party in this network telephone signal certainly, can come source material according to these by this control module 3 again, produce corresponding shows signal, and be sent to this display 21, make that this display 21 can be according to the corresponding display frame of this shows signal output.
In this embodiment, this housing 2 still is provided with another connector 23, this connector 23 can be for connecting a circumscribed headphone, and separate scrambler 26 with this and control module 3 is connected, and this another connector 23 is under the state that connects this circumscribed headphone, can send a link information to this control module 3, make this control module 3 send stop signal to this sound source transmitter 24 and source of sound receiver 22, in order to stopping 22 runnings of this sound source transmitter 24 and source of sound receiver, and only sound and receive sound from this circumscribed headphone.
In another preferred embodiment of the present invention, this control module 3 still is provided with a calculator modules 34, after being pressed, this mode switching key 44 can produce this switching signal, make this control module 3 can be according to this switching signal, this keypad is switched between this symbol input operation pattern, this networking telephone operator scheme or counter words operator scheme, make this rectangle circuit 28 follow-up produce at the key pulse signal, can comply with present operator scheme, be sent to this control module, Keysheet module, network telephone module or calculator modules respectively, carry out subsequent treatment.
And when these numerals, direction and function key 40, after sign of operation key 42 and digital locking key 46 are pressed, this rectangle circuit 28 will produce should the key pulse signal, and be sent to this calculator modules 34, make this calculator modules 34 can be according to different key pulse signals, produce various signal calculated, and be sent to this control module 3, again by this control module 3 according to these signal calculated, produce corresponding shows signal (as: numeral demonstration and result of calculation demonstration etc.), and be sent to this display 21, make that this display 21 can be according to the corresponding display frame of this shows signal output.
In this embodiment, this key groups 4 comprises that still one sends key 41, after this transmission key 41 is pressed, when this rectangle circuit 28 is sent to this calculator modules 34 with this key pulse signal, make this calculator modules 34 produce one and send signal, in order to data with these display 21 present shown pictures, be sent to electronic installation via this connectivity port 20, carry out subsequent treatment.
In these embodiment, this housing 2 is provided with a light-emitting component 25, and after should numeral locking key 46 being pressed, this rectangle circuit 28 is sent to this control module 3 with the key pulse signal of correspondence, makes this control module 3 produce a corresponding luminous signal, and is sent to this light-emitting component 25, in order to change the luminance of this light-emitting component 25, so, the user can be by the luminance of this light-emitting component 25, and the digital locking key 46 of observing this keypad is for opening or closing.
In these embodiment, this display 21 is provided with one first mode of operation viewing area 27 and one second mode of operation viewing area 29, this the first mode of operation viewing area 27 and the second mode of operation viewing area 29, can demonstrate different symbol (as: photo respectively, Cal or pattern etc.), in order to the operator scheme of representing that this keypad is present, after making this mode switching key 44 be pressed, this control module 3 removes can be according to this switching signal, this keypad is switched between a symbol input operation pattern or a networking telephone operator scheme and counter operator scheme, simultaneously, this control module 3 can be according to this switching signal, produce a corresponding shows signal, and be sent to this display 21, make the first mode of operation viewing area 27 or the second mode of operation viewing area 29 of this display 21, demonstrate corresponding picture, so, the user can observe the present mode of operation of this keypad by this display frame.
For exempting from this keypad in conversing, this network telephone signal of false touch and cut off conversation, in these embodiment, this network telephone module 32 is when handling, this is answered and disconnected words key 48 must be pressed after a period of time, make this rectangle circuit 28 in a fixed time, after constantly this key pulse signal being sent to this network telephone module 32, this network telephone module 32 just can produce one of correspondence and dial and connect signal, make this network telephone module 32 cut off follow-up network telephone signal, and stop conversation.
In sum, this keypad combines general keypad together with the networking telephone, make this keypad can use general keypad operation pattern or networking telephone operator scheme, or even again in conjunction with general computing machine, the double keypad of order more includes computer operating modes, and under these operator schemes, all can directly utilize key groups set on this keypad to finish numeral, direction, calculate quickly or function etc. instructed and imported, and call, receive calls, hang up the telephone, increase and decrease this sound source transmitter and send functions such as the volume of alert sound and mathematical operation, can solve keypad, the networking telephone and computing machine not in conjunction with before, can take the problem of playing the space, and make the user more easy in operation.
Claims (11)
1. the keypad that can carry out network telephone signal transmission and conversation is characterized in that, comprising:
One housing;
One rectangle circuit is located in this housing the position of key groups relatively, make the set button of this key groups be pressed after, touch this rectangle circuit, make this rectangle circuit produce key pulse signal, be sent to a control module, carry out subsequent treatment;
One control module, be located in this housing, this control module is to coupled electronic component, control processing, this control module is after being pressed according to a mode switching key, the corresponding keys pulse signal that this control module produces according to this rectangle circuit, produce one and switch signal, again according to this switching signal, this keypad is switched between a symbol input operation pattern or a networking telephone operator scheme, make and be sent to this Keysheet module according to present operator scheme by the follow-up key pulse signal that produces of this rectangle circuit, network telephone module or control module carry out subsequent treatment;
One Keysheet module is located in this control module, makes this control module utilize this Keysheet module, and its received key signal is handled;
One network telephone module is located in this control module, makes this control module utilize this network telephone module, and its received network telephone signal is handled;
One connectivity port is located on this housing, and is connected with this control module, by this connectivity port this keypad is connected with an electronic installation;
One source of sound receiver is located at an end of this housing;
One sound source transmitter is located at the other end of this housing;
One coder, be located in this housing, and be connected together with this control module, make this control module with its network telephone signal of handling, after this coder decoding, pass to this sound source transmitter, to be sounded by this sound source transmitter, the sound that this source of sound receiver is received is behind this coder coding, be sent to this control module and carry out subsequent treatment, send out by this connectivity port again;
One key groups, be located at the position of this housing between this source of sound receiver and this sound source transmitter, key groups includes at least that a plurality of numerals, direction and function key, a plurality of sign of operation key, a mode switching key and a digital locking key and are answered and disconnected words key, button some in the described key groups stretches into this housing, after making described button be pressed, touch this rectangle circuit and produce the key pulse signal.
2. keypad as claimed in claim 1, it is characterized in that, this keypad is under networking telephone operator scheme, this control module according to described numeral, direction and function key, answer and after disconnected words key stroke operation symbolic key is pressed, produce the key pulse signal by this rectangle circuit, utilize this network telephone module to produce the various signal of dialing and connecting according to the key pulse signal that this rectangle circuit is produced.
3. keypad as claimed in claim 1, it is characterized in that, this keypad is under networking telephone operator scheme, this network telephone module receives this additive operation symbol key and is pressed the back by the corresponding key pulse signal of this rectangle circuit generation, and according to this key pulse signal, make this network telephone module produce one of correspondence and dial and connect signal, by this network telephone module this is dialed and connected signal again and pass to this sound source transmitter, make this sound source transmitter dial and connect signal this sound source transmitter volume is increased according to this.
4. keypad as claimed in claim 1, it is characterized in that, this keypad is under networking telephone operator scheme, this network telephone module receives this subtraction symbol key and is pressed the back by the corresponding key pulse signal of this rectangle circuit generation, and produce corresponding one according to this key pulse signal and dial and connect signal, by this network telephone module this is dialed and connected signal again and pass to this sound source transmitter, make this sound source transmitter dial and connect signal this sound source transmitter volume is turned down according to this.
5. keypad as claimed in claim 1, it is characterized in that, this keypad is under networking telephone operator scheme, this network telephone module receives described numeral, direction and function key and is pressed the back by the corresponding key pulse signal of this rectangle circuit generation, and produce corresponding one according to this key pulse signal and dial and connect signal, and after enough this of accumulative total dialed and connected signal, form one group of telephone number, again by this network telephone module according to this telephone number, put through phone to long-range take over party.
6. keypad as claimed in claim 1, it is characterized in that, this keypad is not when conversing, this control module receives the network telephone signal that transmit this connectivity port, this control module produces a notification signal by this network telephone signal, and be sent to this coder and decipher, be sent to this sound source transmitter again and send the tinkle of bells.
7. keypad as claimed in claim 6, it is characterized in that, this sound source transmitter sends the tinkle of bells, and this is answered and after disconnected words key is pressed, this network telephone module is according to produced this corresponding key pulse signal by this rectangle circuit, make this network telephone module produce one of correspondence and dial and connect signal, make this network telephone module handle, and utilize this sound source transmitter and source of sound receiver to converse at follow-up network telephone signal.
8. keypad as claimed in claim 1, it is characterized in that, this housing still is provided with another connector, this connector is for connecting a circumscribed headphone, and be connected with this coder and control module, and this another connector is under the state that connects this circumscribed headphone, send a link information to this control module, make this control module send stop signal to this sound source transmitter and source of sound receiver, in order to stopping the running of this sound source transmitter and source of sound receiver, and only sound and receive sound from this circumscribed headphone.
9. keypad as claimed in claim 1, it is characterized in that, this housing is provided with a light-emitting component, after this numeral locking key is pressed, this rectangle circuit is sent to this control module with the key pulse signal of correspondence, make this control module produce a corresponding luminous signal, and be sent to this light-emitting component, in order to change the luminance of this light-emitting component.
10. keypad as claimed in claim 1, it is characterized in that, this network telephone module is when handling, this is answered and disconnected words key must be pressed after a period of time, make this rectangle circuit in a fixed time, constantly this key pulse signal is sent to this network telephone module after, this network telephone module just can produce corresponding one and dial and connect signal, make this network telephone module cut off follow-up network telephone signal, and stop conversation.
11. the described keypad of claim 1, it is characterized in that, this keypad is under this networking telephone pattern, this control module continue for some time do not receive the key pulse signal that this rectangle circuit transmitted after, this control module can return to a last operator scheme with this keypad by this networking telephone pattern automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100709531A CN100447716C (en) | 2004-07-16 | 2004-07-16 | Small keyboard capable of making network telephone signal transmission and call |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100709531A CN100447716C (en) | 2004-07-16 | 2004-07-16 | Small keyboard capable of making network telephone signal transmission and call |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1722064A CN1722064A (en) | 2006-01-18 |
| CN100447716C true CN100447716C (en) | 2008-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100709531A Expired - Fee Related CN100447716C (en) | 2004-07-16 | 2004-07-16 | Small keyboard capable of making network telephone signal transmission and call |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100447716C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992206B (en) * | 2016-10-26 | 2021-10-01 | 东莞宝德电子有限公司 | Input device, computer system, and communication method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2414553Y (en) * | 2000-03-13 | 2001-01-10 | 中国普天信息产业集团公司 | Network telephone set |
| CN2419628Y (en) * | 2000-03-11 | 2001-02-14 | 陈晋灶 | Mouse intercom device |
| CN2439146Y (en) * | 2000-09-27 | 2001-07-11 | 北京汉王科技有限公司 | Telephone set appearance structure and its panel for intelligent network telephone |
| CN1312495A (en) * | 2000-03-08 | 2001-09-12 | 新巨企业股份有限公司 | Command switch-over method of button combination |
| CN2548206Y (en) * | 2002-04-04 | 2003-04-30 | 吕天保 | Multifunctional computer |
-
2004
- 2004-07-16 CN CNB2004100709531A patent/CN100447716C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312495A (en) * | 2000-03-08 | 2001-09-12 | 新巨企业股份有限公司 | Command switch-over method of button combination |
| CN2419628Y (en) * | 2000-03-11 | 2001-02-14 | 陈晋灶 | Mouse intercom device |
| CN2414553Y (en) * | 2000-03-13 | 2001-01-10 | 中国普天信息产业集团公司 | Network telephone set |
| CN2439146Y (en) * | 2000-09-27 | 2001-07-11 | 北京汉王科技有限公司 | Telephone set appearance structure and its panel for intelligent network telephone |
| CN2548206Y (en) * | 2002-04-04 | 2003-04-30 | 吕天保 | Multifunctional computer |
Also Published As
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|---|---|
| CN1722064A (en) | 2006-01-18 |
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Granted publication date: 20081231 Termination date: 20110716 |