Embodiment
Exemplary and illustrative embodiment of the present invention is described below.In order to clear, all features of actual execution mode are not described in this description, because it will be appreciated by those skilled in the art that in the development of any such practical embodiments, make numerous execution mode specifically to determine to realize specific objective, such as meet system to be correlated with the constraint relevant with business, it changes between execution mode.In addition, should be appreciated that such development may be complicated and time-consuming, but remain the routine matter of those of ordinary skill in the art's experience enjoying interests disclosed in this.To be obvious to those skilled in the art to the various amendments of preferred embodiment, and go for other embodiment in General Principle of this definition.Therefore, the present invention is not intended to be limited to the specific embodiment shown at this and describe, but will meet consistent with principle disclosed herein and novel feature most wide region.
Now with reference to accompanying drawing, the present invention is described.Various structure, system and the equipment object for explaining schematically is described in the accompanying drawings, thus can not fuzzy the present invention to details well known by persons skilled in the art.But, comprise accompanying drawing to describe and explain illustrated examples of the present invention.Vocabulary and phrase as used herein should be understood and interpreted to and there is the meaning consistent with the understanding of various equivalent modifications to those vocabulary and phrase.Be not intended to imply specifically defined (that is, common from understood by one of ordinary skill in the art and be accustomed to the different definition that looks like) of term or phrase at this by term and the consistent use of phrase.Be intended to there is the special meaning (namely with regard to term or phrase, be different from the meaning that technical staff understands) this respect, by with directly and provide the definitional mode of the special definition about term or phrase to set forth special definition expressly in the description unambiguously.
In view of the Background Discussion providing the mechanism of telecommunication above about the current people for deaf person or other dysaudia, present the discussion to these mechanism and adjoint shortcoming and restriction with reference to Fig. 1-2.After this, discussion of the invention is presented with reference to Fig. 3-5.By providing the virtual TTY application manager that can adopt in a wireless communication device, instant invention overcomes the restriction of current TTY signal equipment, thus eliminate in order to the perfect telecommunication for Hearing Impaired requirement Wireless Telecom Equipment interface being connected to expensive and huge TTY equipment.Virtual TTY application manager can adopt providing in any wireless communication system with the interface of TTY equipment.
Forward Fig. 1 to, present the block diagram that current TTY signal equipment 100 is shown.Equipment 100 may comprise the near-end Wireless Telecom Equipment 110 being couple to near-end TTY equipment 102 via analog cable 109.Near-end TTY equipment 102 has the TTY display 104 being couple to TTY keyboard 106.Near-end Wireless Telecom Equipment 110 is communicated with remote wireless communications equipment 120 by wireless network, for purposes of clarity, depicts described wireless network as simple cellular base stations 130.Apparatus for remote communication 120 is couple to far-end TTY equipment 112 via far-end analog cable 119.Far-end TTY display 114 and far-end TTY keyboard 116 is comprised as near-end TTY equipment 102, far-end TTY equipment 112.
In operation, near-end user (not shown) use near-end keyboard 106 input message for by wireless network transmissions to remote subscriber (not shown).Message, when being sent out, can be displayed on near-end TTY equipment 104.Message conversion is analog signal by near-end TTY equipment 102, and this analog signal is sent to near-end Wireless Telecom Equipment 110 by analog cable 109.
Near-end Wireless Telecom Equipment 110 sends the analog signal of carrying message via traditional TTY transmission of messages technology by wireless network, described traditional TTY transmission of messages technology relates to content TTY tone being inserted into instruction simulation signal and comprises in the transmission of TTY character (that is, near-end user input via near-end keyboard 106 those characters).Thus carry out route analog signal via known circuit switching mechanism by network, wherein it is passed to remote wireless communications equipment 120.
Remote wireless communications equipment 120 by far-end analog cable 119 distally TTY equipment 112 analog signal (wherein TTY tone exist) is provided.TTY tone is peelled off by far-end TTY equipment 112 from analog signal, thus leaves TTY character, and TTY character is presented to remote subscriber by far-end TTY equipment 112 on far-end TTY display 114.Then remote subscriber can input the message of message response in response to display by using far-end TTY keyboard 116.And Message Transmission (messaging) (transpire) occurs back and forth until the end of session, now two users stop communication.
Thus, as mentioned above, deaf person or other dysaudia individuality can by using the message of TTY equipment 102,112 by mainly providing the communication network clearing house of voice communication to write.In history, there is provided these equipment 102,112 to make by the communication for Hearing Impaired of PSTN (PSTN) perfect, and these equipment 102,112 are not and provide newer Internet protocol (IP) Web-compatible of the text delivery between the equipment of compatible IP network (texting).
As one it will be understood by those skilled in the art that make improvement in the configuration of Fig. 1, it allows the normal people of Hearing Impaired and hearing to communicate by using artificial switch over operation person.Such as, as the American requirement with Disabilities Act (ADA), a lot of enterprise must allow the client with hearing disabilities to use telephone service, and sets up free national transition network and carry out processed voice to TTY and TTY to the calling of voice.Therefore, enterprise must provide TTY equipment 102,112 to any user of request.Have the switch over operation person of TTY equipment 102,112 from TTY user's receipt of call with other TTY equipment 102,112, then switch over operation person calls out the number of being specified by TTY user.Message is typewrited his/her TTY equipment 102,112 by TTY user, and operator by voice by message transfer to the side of the other end being positioned at calling.Then operator listens to the response of the party, and typewrites back response to TTY user.
Therefore, the one end only shown in Fig. 1 can comprise TTY equipment 102,112, and the other end can comprise the normal user of hearing adopting Wireless Telecom Equipment 110,120 or landline telephone.In addition, although show single base station 130, but this is that in fact one end adopts representative that be couple to the Wireless Telecom Equipment 110,120 of TTY equipment 102,112, that allow any communication network of TTY communication, because presenting thoroughly discussing of the all-network allowing TTY telecommunication is not the object that this applies for.Because technology has developed into increasing user has replaced their landline telephone degree with Wireless Telecom Equipment 110,120, so the interface between TTY equipment 102,112 and respective wireless communication equipment 110,120 thereof is only the interest place of the application.
Referring now to Fig. 2, present description such as above with reference to the block diagram of the details of the current near-end TTY signal equipment 200 of Fig. 1 discussion.If remote communication equipment (not shown) is substantially similar to near-end TTY signal equipment 200, so this block diagram is also the representative of apparatus for remote communication.
Signal equipment 200 can comprise the TTY equipment 202 being couple to Wireless Telecom Equipment 208 via analog cable 210.Analog cable 210 can comprise at present from the available any interface cable be connected to for interface numerous interface cables of TTY equipment 202 of Wireless Telecom Equipment manufacturer.
TTY equipment 202 comprises display 204 and keyboard (or " keypad ") 206.Display 204 has the analog to digital converter (ADC) 243 receiving analog signal from analog cable 210.Display 204 also has the TTY pitch detector 242 being couple to ADC243, and this TTY pitch detector 242 provides message to the region 241 that presents on display 204.
Keypad 206 comprises the message storage devices 261 being couple to TTY tone generator 262.TTY tone generator 262 is couple to the digital to analog converter (DAC) 263 within keypad 206.DAC263 provides analog signal to analog cable 210.
Communication equipment 208 has ADC291, and this ADC291 receives analog signal from analog cable 210 and is couple to TTY pitch detector 292.TTY pitch detector 292 generates the frame for wireless transmission 293 with embedding TTY character 293 wherein.Transmission frame 293 is supplied to the transmission modem 295 being couple to dual-mode antenna 286.
Communication equipment 208 also has the receiving modem 285 being couple to antenna 286, and this receiving modem 285 generates the received frame 283 with embedding TTY character 284 wherein.Received frame 283 is supplied to the TTY tone generator 282 being couple to DAC281.The analog signal generated by DAC281 is routed to TTY equipment 202 via analog cable.
In operation, remote subscriber (not shown) can pass through PSTN, the series of circuit switching and/or wireless voice network sends message " you are good Tom; I is Jim ", and it is finally sent to near-end communication device 208 from neighbouring base station (not shown).According to procotol, modulated message is received by antenna 286, and is provided to RX modulator-demodulator 285.The modulated message that modulator-demodulator 285 demodulation receives, and the received frame 283 it being converted to the TTY character 284 comprised containing message.Communication equipment 208 can be set to TTY pattern, and thus received frame 283 is provided to TTY tone generator 282, and TTY tone is embedded in frame the existence come for TTY equipment 202 Indication message by this TTY tone generator 282.By DAC281, the frame 283 with tone is converted to the analog signal comprising message, and is sent the analog signal comprising message by cable 210 to TTY equipment 202.
Within TTY equipment 202, ADC243 receiving package contains the analog signal of message and is converted to digital stream, and digital stream is provided to TTY pitch detector 242.TTY pitch detector 242 extracts TTY tone from digital stream, and remaining TTY character 283 is provided to display 204 present region 241.Thus, visually proximally user presents " you are good Tom, and I is Jim ".
Near-end user can by via on keypad 206 button will " he Jim, you are how? " be input in message storage devices 281 and respond with this response message.Response message is provided to TTY tone generator 262, TTY tone is inserted in response message by this TTY tone generator 262.The response message with tone is converted to analog response signal by DAC263, and it is sent it back communication equipment 208 by by analog cable 210.
Analog response signal is converted to digital stream by ADC291, and this stream is provided to TTY pitch detector 292, TTY pitch detector 292 by the stream formatted transmission being one or more frame and being used for by wireless network.TTY character 294 is also inserted in one or more frame and indicates the signal be sent out to be mail to compatible TTY equipment (not shown) by pitch detector.
One or more frame is provided to TX modulator-demodulator 295, and it modulates one or more frame according to the agreement being used for being transferred to by antenna 286 neighbouring base station.Thus, remote subscriber will receive response message, " he Jim, you are how? "
The present inventor has been noted that current TTY signal equipment is disadvantageous and restriction in several.First, the deaf person of wireless device of the communication equipment 208 of such as Fig. 2 or the user of other dysaudias are required purchase, safeguard the TTY equipment of the TTY equipment 202 of such as Fig. 2 and travel, to be undertaken by circuit switching (or substantially similar) network link and to be received call with TTY equipment.Except TTY equipment, these users are also required the analog cable buying, safeguard the analog cable 210 of such as Fig. 2, and travel with analog cable.As one it will be appreciated by those skilled in the art that, be expensive with the travelling of such equipment and be at least troublesome.
The present inventor also has been noted that a lot of wireless device (such as, but be not limited to mobile phone, smart mobile phone and flat computer) show input and the element required for display TTY message, therefore target of the present invention is the needs that the user of the wireless device comprising keypad and display element is eliminated to purchases, safeguards TTY equipment and travel with TTY equipment.
The present invention, by being provided for being sent by circuit switching or substantially similar network link and receiving the apparatus and method adopting virtual TTY application manager within the Wireless Telecom Equipment of TTY message, overcomes the shortcoming of the above record of current TTY signal equipment and restriction and other shortcoming and restriction.Now with reference to Fig. 3-5, the present invention is discussed.
Forward Fig. 3 to, the block diagram that to present with virtual TTY signal equipment 300 according to the present invention be feature.Virtual TTY signal equipment 300 can comprise the virtual TTY wireless device 302 of near-end, and the virtual TTY wireless device 302 of near-end comprises display 304 and keyboard 306.Display 304 and keyboard 306 are couple to virtual TTY element 308.In one embodiment, keyboard 306 is mechanical keypads of the button character with the input allowing TTY message.In another embodiment, keyboard 306 be as much current smart mobile phone and flat computer the virtual keypad that represents.Keyboard 306 can be configured by QWERTY, or can be configured to telephone keypad, traditionally or can use T9tMtext Input agreement is come via this telephone keypad input TTY message.Display can be multiple character field, or can be embodied in full screen monitor, such as, but not limited to light-emitting diode (LED) display.
Near-end virtual TTY Wireless Telecom Equipment 302 is communicated by the virtual TTY Wireless Telecom Equipment 312 of wireless network and far-end, and for purposes of clarity, wireless network is depicted as simple cellular base stations 320.As the virtual TTY Wireless Telecom Equipment 302 of near-end, the virtual TTY Wireless Telecom Equipment 312 of far-end comprises display 314 and keyboard 316.Display 314 and keyboard 316 are couple to virtual TTY element 318.Proximal device 302 and remote equipment 312 do not need in configuration the same, but they work in substantially similar mode.
During operation, when equipment 302,312 being placed in TTY communication pattern via known mechanism, near-end user (not shown) use near-end keyboard 306 input for by wireless network transmissions to the TTY message without end subscriber (not shown).Message can be displayed on near-end display 304 when it is sent out, and can be saved (such as, for conversation history) afterwards.Contrary with current mechanism, message conversion is that packetizing signal to be used for by the TTY transfer element (not shown) in proximal device 302 by wireless network with TTY transmission of messages by the virtual TTY element 308 of near-end.
Near-end virtual TTY Wireless Telecom Equipment 302 sends via traditional TTY transmission of messages technology the packetizing signal carrying message by wireless network, wherein traditional TTY transmission of messages technology relates to and TTY tone is inserted into instruction comprises in the transmission of the content of the analog signal of TTY character (that is, those characters inputted via near-end keyboard 306 by near-end user).Thus carry out route analog signal via known circuit switching mechanism by network, wherein it is passed to the virtual TTY Wireless Telecom Equipment 312 of far-end.
Packetizing signal (the current TTY of having tone) is supplied to the virtual TTY element 318 of far-end by the TTY receiving element (not shown) in far-end virtual TTY Wireless Telecom Equipment 312.Far-end TTY element 318 peels off TTY tone from received signal, thus leaves TTY character, and TTY character is presented to remote subscriber by the virtual TTY wireless device 312 of far-end on remote display 314.Then remote subscriber can input message response in response to the message just shown by using remote keyboard 316.And Message Transmission occurs back and forth until the end of session, now two users stop communication.
In one embodiment, the one end only shown in Fig. 3 can comprise virtual TTY Wireless Telecom Equipment 302,312, and the other end can comprise the wired or wireless communication equipment as the TTY equipment that is couple to above with reference to Fig. 1-2 discussion.Alternatively, the other end can comprise the hearing normal users adopting Wireless Telecom Equipment or landline telephone, and wherein TTY message is converted to speech message via switch over operation person or substantially similar intermediate (intermediary).In addition, although illustrate single base station 320, this just in fact allows the representative of any communication network of TTY communication, and in described TTY communication, one end adopts virtual TTY Wireless Telecom Equipment 302,312.
Virtual TTY Wireless Telecom Equipment 302,312 according to the present invention is configured to perform function as discussed above and operation.(namely virtual TTY Wireless Telecom Equipment 302,312 can comprise hardware logic, circuit, device or microcode, microcommand or native instructions), or the combination of hardware logic, circuit, equipment or microcode, or adopt run as the suitable element according to function of the present invention and operation that records.Adopt the element realizing these operations within communication equipment 302,312 and function can share with other logic, circuit, microcode etc. of other function adopting within actuating equipment 302,312 and/or operation.According to the scope of the application, microcode adopts the term referring to multiple microcommand.Microcommand (being also referred to as native instructions) is the instruction being positioned at the rank that functional unit runs.
Referring now to Fig. 4, present the block diagram according to virtual TTY communication equipment 400 of the present invention of two equipment 302,312 that such as Fig. 3 is shown.Equipment 400 according to the present invention can be adopted as proximal device or the remote equipment of any configuration discussed above.In order to the clearly object discussed, equipment 400 will be called as proximal device 400.
Virtual communication equipment 400 can comprise virtual TTY element 408, and this virtual TTY element 408 is couple to display 404 and keyboard (or " keypad ") 406.Virtual TTY element 408 generates transmission frame (or " grouping ") 420, and this transmission frame (or " grouping ") 420 comprises the TTY character 421 inputted via keyboard 406.Frame 420 is provided to transmission (TX) modulator-demodulator 422, and TX modulator-demodulator 422 is couple to dual-mode antenna 414.
Antenna 414 is couple to reception (RX) modulator-demodulator 412, the frame 410 wherein with the reception of TTY character 411 is provided to virtual TTY element 408 by modulator-demodulator 412, for presenting to near-end user (not shown) via display 404.Virtual TTY element 408 comprises virtual TTY equipment manager 481, and virtual TTY equipment manager 481 is couple to display controller 484 and keyboard controller 486.
In operation, remote subscriber (not shown) can pass through PSTN, the series of circuit switching and/or wireless voice network sends TTY message " you are good Tom; I is Jim ", and it is finally sent to proximal device 400 from neighbouring base station (not shown).According to procotol, the message of modulation is received by antenna 414, and is provided to RX modulator-demodulator 412.The modulated message that modulator-demodulator 412 demodulation receives, and the received frame 410 it being converted to the TTY character 411 comprised containing message.Virtual TTY communication equipment 400 can be set to TTY pattern, thus received frame 410 is provided to virtual TTY element.
Virtual TTY equipment manager 481 extracts TTY character 411 from received frame 410, and character 411 is supplied to display controller 484.Display controller 484 controls display 404 so that proximally user shows character 411.Thus, visually proximally user presents " you are good Tom, and I is Jim ".
Near-end user can by via on keypad 406 key-press input " he Jim, you are how? " respond with this response message.Thus keyboard controller 486 provides the character stream of message to equipment manager 481.Equipment manager 481 is by the stream formatted transmission being one or more frame 420 and being used for by wireless network.Frame 420 comprises message and is used to indicate the TTY character 421 that the signal sent mails to compatible TTY equipment (not shown).
One or more frame 420 is provided to TX modulator-demodulator 422, and it modulates one or more frame according to the agreement being used for being transferred to by antenna 414 neighbouring base station.Thus, remote subscriber will receive response message, " he Jim, you are how? "
Forward Fig. 5 to now, present the block diagram of an embodiment according to virtual TTY communication equipment 500 of the present invention of the equipment 400 that such as Fig. 4 is shown.Equipment 500 can be embodied in the smart mobile phone 500 with display 501 and the virtual touch plate 504 for the input of message character.
For the TTY message processed by virtual TTY element 408, display controller 484 can present received TTY message 502 (" you are good Tom, and I is Jim ") via display 501.When user's (not shown) via keyboard 504 input response message 503 (" he Jim.You how? ") time, virtual device manager 481 can also guide display controller 484 to present response message 503 via display 501 to user.
The part of the present invention and corresponding detailed description represents with the symbol of the operation about data bit within software or computer storage and the form of algorithm presents.These describe and represent be those skilled in the art effectively passed on the essence of their work used to others skilled in the art by it those.As to use here and the algorithm of normally used term is considered to cause the self-consistent sequence of the step of the result expected.Step is those of the physical operations of requirement physical quantity.Usually, although may not, this tittle adopts the form of the optical, electrical or magnetic signal that can be stored, transmit, compare and operate.These signals are referred to as bit, value, element, symbol, character, term, quantity etc., and being proved to be is sometimes easily, mainly for the reason of public use.
But should remember, these and similar term will be associated with suitable physical quantity, and they are only the convenient labels being applied to this tittle.Unless explicitly stated other, or as apparent from discussion, otherwise the term of such as " process " or " calculating " or " determination " or " display " etc. refer to operate computer system RS within be represented as physics, amount of electrons data and be converted into behavior and the process of the computer system being similarly represented other data for physical quantity, microprocessor, CPU or the similar electronic computing device within the such information memory of computer system memory or register or other, transmission or display device.
Be also noted that the aspect of the present invention of software simulating is coded on the program recorded medium of certain form usually, or be implemented on the transmission medium of certain type.Program recorded medium can be electronics (such as, read-only memory, flash ROM, EPROM), random access memory magnetic (such as, floppy disk or hard disk) or optics (such as, compact disc-ROM or " CDROM "), and can be read-only or random-access.Similarly, transmission medium can be metal trace, twisted-pair feeder, coaxial cable, optical fiber or certain other suitable transmission medium known in the art.The present invention is not limited by these aspects of any given execution mode.
Disclosed specific embodiment is only illustrative above, and it will be appreciated by those skilled in the art that they easily can use disclosed design and specific embodiment as design or revise other structure for performing the basis of identical object of the present invention, and this can carry out various change, replacement and change and do not depart from as claims the scope of the present invention set forth.