MXPA96006089A - External source of communications to ra interface - Google Patents

Abstract

An interface, between a portable cell phone and a car radio, to allow the operation of the phone, with freedom of hands, this interface is housed in a remote housing connected to an adapter plug of the cigarette lighter of the battery eliminator, for simple installation inside a car. The interface converts the incoming signals, from the cell phone, from audio to radiofrequency, and transmits the signals to the existing radio receiver of the car, in which the signals are reproduced on the radio speakers. The interface can also be used with a power conversion system, to increase the power of telephone transmissions. Also, this interface can be used with any external communication source, such as a facsimile machine or a laptop and the modem (modulator-demodulator). The interface is also easily adapted for use with any isolated device, audio product, such as a cassette player or a compact disc player

Description

EXTERNAL SOURCE OF COMMUNICATIONS TO RADIO INTERFACE This is a partial continuation of the US application, Serial No. 08 / 419,893, filed on April 11, 1995. Technical Field The present invention relates, generally, to a communications interface and, more particularly, to an interface between an external source of communications and a car radio. Prior Art External sources of communications, such as portable cell phones, have become increasingly popular and are used in many automobiles. Unfortunately, in order to use the telephone, a user must hold the telephone receiver close to his ear, which distracts the user in his ability to operate, appropriately and safely, the automobile. To overcome this problem, devices have been developed and known that allow the operation, with freedom of hands, of a cell phone in a car, for example, Takano, U.S. Patent No. 4,845,738 and Ono, U.S. Patent No. 4,905,270. These prior art devices comprise a support, typically installed near the driver's seat and in which You can insert the cell phone. The device transmits the incoming signals by wires from the cell phone to an external amplifier and speaker system, which must also be installed somewhere inside the car, most likely on the floor, the dashboard or in the suitcase. In addition, a microphone must also be installed in the car to transmit the signals of exit voices to the telephone. While these devices allow the operation, with freedom of hands, of a cell phone in a car, they have several drawbacks. The installation of amplifiers, speakers, microphone and telephone support can be expensive and time consuming and is often too complicated for the average user. Likewise, such devices can huddle inside the automobile and interfere with its efficient and safe operation. Also, once the devices are installed, they are fixed inside the car and can not be easily removed. Thus, the devices are not portable and can not be easily moved from one car to another. Thus, there is a need for a portable interface, which allows the free operation of the hands of a cell phone inside a car, without the need for wires and external components that imply a costly and / or difficult installation and that crowd inside. of the automobile. digest of the invention An interface that can be connected to an external communication source to communicate the source to a radio apparatus, including a radio receiver and horn, comprises a converter, which converts the incoming audio signals from the source to radio frequency signals, and a transmitter, which transmits the radio frequency signals to the radio receiver, in which the audio signals are reproduced on the radio horn. According to one aspect of the present invention, the interface also includes a microphone, which receives an outgoing audio signal and transmits this outgoing signal to an external communication source and an amplifier and horn, which reproduces a signal generated by the source external communications, when an incoming signal is received. The interface includes or can be connected to a battery eliminator, to supply power to the external source of communications from an external source of power. The battery eliminator may also include a battery charger for charging an internal battery from the external communication source, when the source is not used. The interface can be housed in a support in which the external communication source can be inserted, in an adapter plug, which can be connected between the source and the external source of power, or in a remote housing, which can be connected to the source and the external power source. According to another aspect of the present invention, the interface may include a capacitor coupled between an interface antenna and the external power source. According to yet another aspect of the present invention, the interface may include an annunciator, which develops a tone when an incoming signal is received by the external communication source and an element to delay the transmission of the incoming signal from the interface to the radio, to allow adjustment of this radio. According to yet another aspect of the present invention, the interface may include an RBDS transmitter, for transmitting a command to activate and / or adjust an RBDS radio at an appropriate frequency, to receive the incoming signals from the external communication source. The interface may also include an element for transmitting the identification information to the radio, which may be reproduced on the radio horn or displayed on a radio display panel. Still further, the interface may include a speech recognition element to enable a user to control the external source of communications and / or the radio, through voice commands. According to an alternative embodiment of the present invention, an interface can be connected between a portable cell phone and a fixed cell phone, to communicate the landline to the radio, which includes a radio receiver and a speaker. The interface includes a transceiver, which receives operating signals from the telephone from the portable telephone and transmits the signals to the fixed telephone, a converter, which converts incoming audio signals from the landline telephone into radio frequency signals, and a transmitter that transmits the radio frequency signals to the radio receiver, in which the audio signals are reproduced in the radio horn. According to a further alternative embodiment of the present invention, a system for communicating a portable cellular telephone to a radio includes an energy converter, which converts a signal, between the power levels and an interface that can be connected to a telephone. cell phone. The interface includes a transmitter-receiver, which communicates with the power converter and the cell phone, a converter which converts the incoming audio signals, coming from the telephone, to radio frequency signals, and the transmitter, which transmits the signals for reproduction on the radio. According to still another embodiment of the present invention, an interface, which can be connected to an audio producing device, for communicating the device to the radio, which includes a radio receiver and a speaker, It turns on a converter, which converts the incoming radio signals, from the audio producing device, to radio frequency signals, a transmitter, which transmits the radiofrequency signals, by means of an antenna, to the radio receiver, where the audio signals are reproduced on the radio horn, and a capacitor, coupled between the antenna and an external power source, which supplies the power to the radio. Brief Description of the Drawings Figure 1 is a block diagram of the external source of communications to the radio interface of the present invention, in conjunction with the associated apparatus; Figure 2A is an isometric view of a support housing for the interface of the present invention, including a portable cellular telephone, inserted into the support; Figure 2B is a fragmentary plan view of the support housing of Figure 2A, which excludes the portable cellular telephone; Figure 2C is an isometric view of an alternative housing of the adapter plug, for the interface of the present invention; Figure 2D is an isometric view of a further alternative remote housing for the interface of the present invention; Figure 3 is a block diagram of an embodiment of the interface of the present invention, for use with a standard portable cellular telephone, in which the components of the alternative mode are shown in dashed lines; Figures 4A and 4B, when joined side by side on lines with similar letters, comprises a schematic circuit diagram of the interface of the Figure 3; Figure 5 is a block diagram of a 3-watt fixed telephone power conversion system for use with the portable cellular telephone; Figure 5A is a schematic diagram of the 3-watt interface of the prior art, according to Figure 5; Figure 6 is a block diagram of an alternative embodiment of the interface of the present invention, for use with the power conversion system of Figure 5; Figure 7 is a block diagram of a further alternative embodiment of the present invention, including an interface for communicating a portable cellular telephone with a radio, and a power converter for amplifying telephone power transmissions; Figure 8 is a block diagram of another embodiment of the present invention, including an interface for communicating a fixed, isolated audio producing device with a radio; Figure 9 is a block diagram of yet another embodiment of the present invention, including an interface for communicating an external source of communications with a Radio Broadcast Data System; and Figure 10 is a block diagram of yet another embodiment of the present invention, which includes an interface for communicating a digital computing device with a radio. Detailed Description Referring to Figure 1, an interface 10, between an external communication source 12, such as a portable cell phone with a telephone antenna 14, and a radio 16, allow hands-free operation of the telephone 12. While the interface 10 is adapted for use with a car radio 16, to allow the driver or a passenger of the automobile to operate the telephone 12 with freedom of hands, it should be noted that the interface 10 can be used, alternatively, in a Different environment, if desired. In addition, the invention is not limited to cell phones and can be adapted for use with any other external communication source, such as a device portable communications, similar to a laptop and modem (modulator-demodulator), a facsimile machine or similar. In addition, the interface is easily adapted for use with a fixed, isolated audio producing device, such as a cassette unit, a compact disc player, a navigation system, a video game, or the like. The interface 10 is compatible with any standard radio 16, such as those found in most automobiles. This radio 16 includes a radio antenna 18, a receiver 20, an amplifier 22 and one or more horns 24. The interface 10 also includes an antenna 26, which communicates with the antenna 18 of the radio. In one embodiment, as shown in Figures 2A and 2B, the interface 10 can be housed within a support 28, which can be attached to the interior of a car to protect the telephone against movement within the automobile. The telephone 12 is inserted inside and retained by the bracket 28 and a first connector 30 within the bracket 28 corresponds to the socket 32 of the interface (shown schematically in Figures 1 and 4A) of the telephone 12. The bracket also includes a second connector 34, which corresponds to a power socket (not shown) in the telephone 12. An existing plug 36 of the battery eliminator can be connected to a socket 38 in the support 28, by means of a cord 40, to supply power from a eternal source 42, such as a car battery, to the cellular telephone 12. The battery eliminator plug 36 may also include a battery charger, for charging an internal battery 44 of the telephone 12, by means of a second connector 34 in the support 28, when the telephone 12 is not used. Support 28 may include additional features, such as a DC current bushing 46, capable of receiving power from a transformer for interface 10 and telephone 12 from a standard electrical outlet in a home or office. Similarly, support 28 may include a socket 48 for receiving a monaural or sterile earphone jack. The interface 10 can alternatively be housed in an adapter plug 50, such as that shown in Figure 2C, which can be connected between the cellular phone 12 and the external power source 42. In this embodiment, the interface 10 is easily installed by inserting a connector 52, disposed at the end of a cord 54, into the interface socket 32 of the telephone 12 and connecting the plug 50 of the adapter to the external power source 42. The plug 50 of the adapter, which houses the interface 10, and the plug 36 of the battery eliminator, which is connected to the bracket 28, can, for example, be inserted into the receptacle of the cigarette lighter socket of automobile cigarettes, to supply external energy from a battery or alternatively, can be configured to connect to any other external source of energy. Referring to Figure 2D, the interface 10 can also be incorporated into a remote housing 55, connected between a plug 56 of the battery eliminator and a telephone connector 57, which can be inserted into the bushing 32 of the interface in the 12 portable phone. The plug 56 of the battery eliminator, which is substantially similar to the plug 36 of the battery eliminator, shown in Figure 2A, can be inserted into the receptacle of the cigarette lighter socket of a car, to supply power from the battery of the car. automobile to the interface 10 and the portable telephone 12. As will be evident from the foregoing, the interface 10 may be housed in an adapter socket, a support or a remote housing or may include components in several of these structures or other structures. In addition, the support 28, the plug 50 of the adapter and the remote housing 55, illustrated in Figures 2A-2D all allow the interface 10 to be easily installed in and removed from the automobile. The interface of the present invention can be used with any portable cell phone or with a portable telephone and a power conversion system of 3. watts. Figure 3 illustrates an embodiment of interface 10 for use with a portable cellular telephone, such as an alternative telephone of the Motorola PT series. The interface 10 includes a radiofrequency audio-frequency converter 58, and a radio-frequency transmitter 60. As mentioned above, the interface 10 can also include a battery eliminator 62 and a battery charger 64 or can be connected to a separate outlet 36 of a battery charger and eliminator. When the interface 10 is connected to the portable cell phone 12, this telephone 12 preferably receives power from the external source 42 via the battery eliminator 62, to enable the operation of the telephone 12 without energy discharge from the internal battery 44 of the telephone. Further, when the telephone 12 is not in operation, the battery charger 64 preferably charges the internal battery 52 of the telephone, so this telephone 12 will be operative when the user disconnects the interface 10. The incoming communication signals, received by the antenna 14 of the telephone from an external communications cell 66, are converted into audio signals by the telephone 12 and sent to the interface 10, where the converter 58 converts the audio frequency signals into radio frequency. The radio frequency signals are then transmitted by the radiofrequency transmitter 60 to the receiver 20 of radio by means of the interface antenna 26 and the antenna 18 of the radio. According to one embodiment, the transmitter 60 transmits the signals at a predetermined frequency for transmission over a selected frequency of FM or AM radio. The signals are received by the radio antenna 18 and the radio receiver 20, and amplified by the radio amplifier 22 for reproduction on the radio horns 24. When the interface 10 is connected to the interface socket 32 of the telephone 12, the internal speaker (earphone) of the telephone and the microphone (mouth piece) are disabled and all the audio signals are sent to the interface 10. A microphone 68 converts the acoustic energy in electrical sound signals and supplies the signals to the cellular telephone 12, allowing the user to operate the telephone 12 with the hands free. As shown in Figures 2A and 2B, the microphone 68 can be incorporated within the support 28 and / or this support 28 can include a bushing 70 for connection to an external microphone, which can be installed at some other location in the car. In the embodiment of Figure 2C of the interface 10, the microphone 68 can be incorporated into the plug 50 of the adapter or the cord 54. In the embodiment of Figure 2D of the interface 20, the microphone 68 can be connected to the remote housing 55 by a flexible wire, which allows the user to optimally position the microphone 68. Alternatively, microphone 68 may be linked to telephone 12 by wireless transmission or by a separate wire. Referring again to Figure 3, the interface 10 may also include a horn 72 and a horn amplifier 74, which reproduces the internal ringing of the telephone 12 when a call is received. In addition, the horn 72 and the amplifier 74 provide an auxiliary system for reproducing the incoming speech signals, if the radio 16 is not operative. Reference is also made to Figures 2A-2D, the horn 72 and the amplifier 74 may be housed within the support 28, the plug 50 of the adapter or the remote housing 55 or may be installed at some other location in the automobile. The ringing reproduced on the horn 72 alerts the user to activate and / or tune the radio 16 at the appropriate frequency to receive the incoming signals. After the radio 16 has been properly adjusted, the operator activates the telephone 12 to answer the call, such as by pressing the "send" button on the telephone 12. To initiate an outgoing call, the operator adjusts the radio 16 in the appropriate frequency, before dialing and sending the call. The interface 10 can transmit signals to the radio 16 at any selected radio, FM or AM frequency. The FCC strictly regulates the use of radio frequencies for all signals greater than 100 mW, but the telephone signals transmitted by interface 10 are below the FCC regulation range. To eliminate interference with other radio signals, the interface 10 can transmit signals at a normally vacant frequency, such as at 87.9, 88.1 or 883. mHz, which are not used by the FCC radio signals. According to an alternative embodiment of the invention, the interface 10 may include an annunciator 76, which develops a tone signal to alert the user when an incoming call is received by the telephone 12. The interface 10 may also include a clock 78. , which starts to work when the announcer 76 first develops the tone. No signal will be transmitted from interface 10 to radio 16 until clock 78 operates for a predetermined delay period, such as 10 seconds. This delay is provided by the user to adjust the radius 16 before the incoming speech signals are transmitted from the interface 10. Thus, even if the user activates the telephone 12 to answer the call before adjusting the radius 16, no signal will be transmitted before the user has time to adjust the radius 16. According to a further alternative embodiment of the present invention, the interface 10 may include a circuit 80 radio command to develop operating commands for the radio 16. When the portable cell phone 12 receives a call, the transmitter 60 sends a signal developed by the command circuit 80 of the radio to the radio receiver 20, to activate, adjust the volume and / or automatically tune the radio 16 to the appropriate frequency to receive the call. In addition, if desired, a ring tone, developed by telephone 12 when an incoming call is received, can be transmitted by interface 10 to radio 16, for playback on speakers 24 of the radio, to alert the user of the incoming call, eliminating the need for the horn 72 and the amplifier 74 and the annunciator 76 on the interface 10. When the user hears the ringing on the horns 24 of the radio, the user will simply activate the telephone 12 to receive the call. Similarly, when the exit call is initiated by the user, the radio command circuit 80 and the transmitter 60 can send a signal to the radio receiver 20 to activate and / or adjust this radio 16 to the appropriate frequency, so that the signals received by the telephone 12 can be heard on the radio 16. According to another alternative embodiment of the invention, the interface 10 can transmit the signals to the radio receiver 20 at the intermediate FM frequency of the radio (10.7 mHz). The signals of intermediate frequency they modify other radio signals and allow transmission at any radio output frequency, eliminating the need to adjust the radio 16 to a particular frequency. In addition, the radio command circuit 80 may receive caller identification information, such as the number from which the call originated from the telephone 12 and the transmitter 60 may transmit the information to the radio 16 before the operator answers a call incoming. This information can then be reproduced on radio speakers 24 or displayed on a radio display panel 16. Radio command circuit 80 may also include a memory for storing caller ID information. If desired, the interface 10 may also include a speech recognition circuit 82, which would allow the operator to dial, send and receive calls by voice commands and allow the operation with free hands completely and control of the portable cell phone 112. In addition, the voice recognition circuit 82 can be connected to the radio command circuit 80 to allow the user to adjust and control the radio 16 through the voice commands. The external communication cell 66 may include a voice recognition system, in that once the user activates the telephone 12 to connect to a cell 66, the user can dial the telephone 12 through the voice commands, which are interpreted by the cell 66. The interface 10 of the present invention is compatible with this type of speech recognition system, without the use of a circuit 82 of speech recognition. If cell 66 returns a signal to telephone 12, this signal will be reproduced on radio 16. Figures 4A and 4B, when joined side by side on lines with similar letters, form a circuit diagram of the mode of Figure 3, of interface 10, which includes microphone 68 and speaker 72, as designed for specific use with an alternative telephone of the Motorola PT series and transmission to radio 16 at a frequency of 87.9 MHz. / descriptions of the components are indicated below, however it will be understood that those particular values and integrated circuits, shown in Figures 4A and 4B are merely exemplary in the sense that other components may alternatively be used in accordance with the present invention. In addition, the circuit can be easily modified by a person skilled in the art for transmission on any AM or FM frequency or for compatibility with other portable cell phones, which include the phones manufactured by Nokia, GE, Mitsubishi, Oki, Panasonic, Bosch or others.

Referring to Figures 4A and 4B, the interface 10 is connected to the portable telephone 12 by a telephone interface socket 32, which comprises eight pegs. The plugs 1 and 2 are connected to the battery eliminator 62 (or to a separate outlet 36 of the battery eliminator), to supply power to the telephone 12 and the interface 10. In order to disable the internal speaker and the internal microphone of the cell phone portable 12, pin 4 is connected to ground through resistor R16 of negative coupling and a constant source of five volts is supplied to pin 5 by means of a simple shunt regulator, comprising resistors R13 and R14 and a Zener diode Z2. When the plug 4 and the plug 5 are terminated as described above, the internal speaker and the telephone microphone 12 are disabled and access to these functions becomes available at pins 7 and 8. Specifically, the output audio signals from the user are provided to the plug 8 and the incoming signals that will normally be reproduced in the telephone handset 12 are provided to the plug 7. The microphone 68 is connected to the plug 8 of the socket 32 of the phone's interface through circuit 84 of the microphone amplifier. A Motorola PT series telephone requires the input to pin 8 to be an audio signal of approximately 0 to 0.5 volts, peak to peak, with a bias voltage of 8 volts DC. The Zener diode Z3 and the current limit resistor R7 supply a constant voltage for the microphone 68. The Z3 diode is also used to develop a reference voltage without 8 volt bias interference to the inverting amplifier OP1-A, through the filter RC comprised of capacitors C12 and C22 and resistor R8. The AC signal generated by the microphone 68 passes through the DC blocking capacitor C23 and is amplified by the inverting amplifier OPl-A, whose gain is determined by the values of the resistors R9 and RIO. The C16 capacitor stabilizes the microphone amplifier circuit 84 of the effects of the input capacitance and the resistor Rll stabilizes the effects of the output capacitance, to reduce the tendency of the high gain amplifier circuit 84 to oscillate. All ground input circuit systems are summed at pin 6 to analog ground of the telephone interface socket 32. However, the grounding of amplifier OPl-A is connected to pin 1 of power to ground of the bushing 32 of the interface. This route to ground eliminates his and hum noise in the interface circuit. The incoming audio signal on pin 7 of the socket 32 of the telephone interface, which will normally be transmitted to the handset of the telephone 12, is connected to the plug 3 of an IC2 chip of the transmitter via a signal buffer circuit 86. This buffer circuit 86 comprises the non-inverting OPl-B amplifier related to the supply of +8 volts. The resistor R12 supplies the current limiting protection for the input to the amplifier OPl-B and the resistor R24 supplies a positive coupling for the signal present in the pin 7. The resistor R22 controls the gain of the amplifier OPl-B to amplify the incoming audio signal for modulation by the IC2 chip of the transmitter. The resistor R15 isolates the output of the amplifier OPl-B from the load of the Capacitor of capacitors C19 and C20. The output of amplifier OPl-B is AC coupled to the input of speaker amplifier 74 through capacitor C20 and is also connected to pin 3 of chip IC2 of the transmitter through capacitor C19. The horn amplifier 74 is a current amplifier with a relatively high input impedance and a low output impedance, to drive the 8 ohm load of the horn 72. The resistors R17 and R18 set the DC orientation of the input to the amplifier 74 of the speaker at half the supply value of +8 volts. The transistor Q2 and the resistor R19 form a voltage follower with reference to ground and the transistor Q3 and the resistor R20 form a voltage follower with reference to the supply of +8 volts. The output of the two followers Q2, R19 and Q3, R20, transversely coupled, is connected to a complementary follower comprising the transistors Q4 and Q1 in the second stage of the amplifier 57. The AC component of the signal is driven and extracted to through the capacitor C17 and through the voice coil of the horn 72. The amplifier 74 of the horn and speaker 74 reproduce the ringing of the telephone 12 when an incoming call is received and also provide a backup system for reproducing the signals of incoming voice, received by telephone 12 if radio 16 does not operate.

The IC2 chip of the transmitter is a narrowband transmitter MC2833P, manufactured by Motorola. The chip was designed to operate primarily on cordless phones in the 49 MHz frequency band, but the values of the circuit components have been altered to allow the transmitter to operate closer to the FM broadcast band. The chip IC2 of the transmitter, with the associated circuit system, comprises the radiofrequency audio-frequency converter 58 and the radiofrequency transmitter 60 of the interface 10. The chip IC2 of the transmitter is coupled to the crystal oscillator 88, formed by the crystal XI , the inductor L4 and the capacitors Cl and C2. The output of oscillator 88, which operates at 22.025 mHz, is regulated and appears on pin 16 of chip IC2 of the transmitter. Pin 3 of chip IC2 of the transmitter forms the input to the internal variable reactance circuit. The incoming audio signal from the signal buffer circuit 86, applied to the pin 3, is mixed with the output of the crystal oscillator 88 to modulate the FM of the radio signal on the oscillator carrier. The output is then connected to the frequency doubler circuit, formed by capacitors C3, C4 and C5 and inductor L3. The output of the frequency doubler is fed into the base of an internal amplifier of the radio frequency transistor on pin 13 of chip IC2 of the transmitter. He internal amplifier, in combination with the capacitors C6 and C7, the resistors Rl and R7, and the inductor Ll, form a second frequency doubler circuit, whose output is fed through the DC blocking capacitor C12 in a last stage amplifier on pin 8 of chip IC2 of the transmitter. The last stage amplifier, which includes an internal radiofrequency transistor and associated resistors R2 and R3, the capacitors CIO, Cll and C13 and the inductor Ll, comprise a linear amplifier having an output that appears on pin 9 of the IC2 chip of the transmitter. This output is connected to inductor L2, which is located for the maximum radio frequency output. The signal then passes through capacitor C12 to antenna 26 for transmission to radius 16. The center crystal output frequency (22.025 MHz) is there multiplied four times for the final transmission to radius 16 at 88.1 MHz. The power for the chip IC2 of the transmitter is supplied through the diode DI, resistor R21 and the voltage developed through the Zener diode Zl. The Motorola MC2833P chip is operated on any voltage from 2.5 to 9 volts. The output power of the transmitter can be adjusted by changing the voltage of the Zener diode Zl. Portable cell phones have a low power transmission capacity (typically 0.6 watts) and many manufacturers offer systems to raise hasia transmissions and from the cell phone to 3 watts. Figure 5 illustrates a typical power conversion system 200, for use with a portable cellular telephone 212. The energy conversion system 200 comprises a fixed cellular telephone 211 with 3-watt transmission capabilities, which is wired to a portable cellular telephone 212 by means of a 3-watt interface 213, is to an interface socket 232 of a portable telephone 212. The fixed telephone 211 is typically installed remotely, for example in a car's luggage compartment and is con an external source 242 of energy, such as a car battery, to supply power to the landline telephone 211. Once the landline telephone 211 is installed, the telephone transmissions occur exclusively between the landline telephone 211 and an external cell 266 of communications, via an external antenna 215 of the landline telephone 211. An antenna 214 of the portable telephone 212 is disabled and the portable telephone 212 operates exclu as the user interface to the landline telephone 211. FIG. 5A is a schematic diagram of the 3-watt interface 213 of the prior art, connected between the portable telephone 212 and the landline telephone 211. The input signals of the digital keypad of the user and other digital signals of the telephone operation, are transmitted from the slaves 3, 4 and 5 of the socket 232 of the interface of the portable telephone to the fixed telephone 211 by means of the 3-watt interface 213. This 3-watt interface 213 also supplies the power from the landline telephone 211 to the portable telephone 212 via the socket 2 of the socket 232 of the interface. In addition, the 3-watt interface 213 includes the transformers TI and T2 which isolate the audio signals provided on the slaves 7 and 8 of the socket 232 of the portable telephone interface and transmit the signals to the fixed telephone 211. The operation with freedom of hands of the fixed telephone power conversion system 200, can be achieved by installing an external microphone 219 to transmit the outgoing voice signals to the landline telephone 211, and an external amplifier and speaker 221 to reproduce the incoming signals from the landline telephone 211 Both the microphone 219 and the speaker 221 must be wired to the fixed telephone 211 and installed inside the automobile. The present invention can be adapted for use with a 3-watt power conversion system, similar to that shown in Figure 5. Referring to Figure 6, according to an alternative embodiment of the present invention, an interface 210 can be between the portable telephone 212 and the fixed telephone 211. The interface 210 transmits incoming voice signals from the telephone fixed 211 to a radius 216, eliminating the need to install the external amplifier and the bosina 221, to allow the operation are freedom of hands. The interface 210 is similar to the interface 10 of FIG. 3 in which a sound-proof radio-sound station 258, a radio-frequency transmitter 260 and an antenna 226 are sompressed, to be the radio 216. However, the interface 210 also includes a transceiver-receiver 223, the sual replaces the 3-watt interface 213 of Figures 5 and 5A and this is the portable telephone 212 to the landline telephone 211. The interface socket 232 of the portable telephone 212 is connected to the interface 210 and is interface 210 is provided by a wire 225 to the landline telephone 211. In the embodiment of Figure 2A of the interface, the support 28 may include a socket 227, the sual resides the wire 255 for connection to the landline telephone 211. The transmitter- The receiver 223 receives the telephone operation signals from the numeric tester or the memory of the portable telephone 212 and transmits the signals to the fixed telephone 211. The telephone operating signals include, for example, This is the identifisation number of the caller of the portable telephone 212, the telephone numbers previously programmed, stored in the memory and the input signals of the user's numeric test.

The interface 210 and the landline 211 are routed to the external source 242 of power, the sual supplies the power to the landline 211 and the interface 210. The power is supplied to the portable telephone 212 from the landline by means of the wires 225 Alternatively, the interface 210 may be used in conjunction with the existing 3-watt interface 213, of Figures 5 and 5A, and does not include the transmitter-reseptor 223. The interface 210 of Figure 6 (minus the transmitter-reseptor 223). ) can be used only to the fixed telephone instead of the external microphone 219 and the amplifier and bosina 221 shown in Figure 5. By referring again to Figure 6, the interface 210 also includes a speaker 272 and the amplifier 274, to reprodir the internal ringing of the landline 211 suando resides an incoming call. The incoming voice signals are received by the landline telephone 211 from the external station 266 of somunisasiones and converted into audio signals. The incoming audio signals are then transmitted from the landline telephone 211 to the converter 258 of the interface 210 via a wire 259. The converter 258 converts the incoming audio-frequency signals to radio frequency and the transmitter 260 transmits the radio-frequency signals to the radio frequency. radio 216 via antenna 226 of the interface. The signals are then reproduced in Bosinas 224 of the radio. A misophone 268 receives the user's output signals and transmits them to the landline 211 via a wire 269 for transmission to the external station 266 of somunisasiones. The wires 259 and 258 can also be tested at the interface via bushing 227 (FIG. 2A). Accordingly, they are an alternative modality of the present invention, as shown in Figure 7, an interface 310 can be adapted for the wireless somunisation, they are an energy sonder 363, to increase the power of the hasia transmissions and from a portable seal phone 312. The power transducer 363, the sual resides the potency from an external source 342, includes a transmitter-receiver 365 and a repeater 367 installed, for example, in the car's pouch. The potency transducer 363 also includes an external antenna 371 for the somunisation are an external station 366 of sommunications and an internal antenna 373 for the somunisation are the interface 310. This interface 310 includes a sonorber 358 of audio-fresuensia to radiofresuensia, a transmitter 360 of radiofresuensia and a first antenna 326, for the somunisasión are a radio 316 via a radio antenna 318. The interface 310 also includes a transmitter-reseptor 375 and a second antenna 377 for the somunisation are the power transducer 363.

The voice signals that are produced are transmitted from a misophone 368 to the portable telephone 312. The signals that are produced are then sent from the telephone 312 to the transceiver-receiver 375 of the interface, via a 379 wire. receiver 375 of the interface transmits the signals to the power converter 363 via the antennas 377 and 373. The signals are received by the transceiver 365, amplified by the repeater 367 and transmitted via the external antenna 371 to the cell external 366 communications. The incoming communisation signals of the external station 366 are received by the power converter 363 by means of the external antenna 371 and the transmitter-receiver 365. The signals are then amplified by the repeater 367 and transmitted by way of the internal antenna 373 to the transmitter-receiver 375 of the interface via the second antenna 377 and subsequently sent via the wire 379 to the telephone 312. This telephone 312 converts the signals into audio signals and these audio signals are sent to the converter 358 of the interface for the conversion to radiofrequence signals. The transmitter 360 then transmits the radio-frequency signals via the antenna 326 to the radio 316 for reprodussing on the speakers of the radio 324. The operation and advantages of the interface 210 of Figure 6 and the interface 310 and the power converter 363 of Figure 7, they are not significantly afflicted by the physical disposition of the somponents. The 363 power sonder can be installed in the suitcase or anywhere inside the car. The interface 210 or 310 may be housed in a support or an adapter shroud or may contain components in both of these or other structures. In addition, the microphone 268 or 368 and bosina 272 or 372 may be housed in the interface or may be installed in some other location in the automobile. In addition, the interface 210 of Figure 6 and the interface 310 of Figure 7, can include the discursive ophthalmic sarasteristices in relasion are the interface 10 of Figure 3, such as an advertiser and clock, command system of commands of the radio or voice recognition. Figure 8 is a block diagram of another embodiment of the present invention, in which an interface 410 can be set between an audio produstor device 412 arranged in isolation, and an external power source 442, such as the battery A car. This audio produstor 412 device can be a saset unit, a compact disc reproducer, a video game, a navigational computer, a digital computer, or the like. The interface 410 listens to audio signals from the audio output device 412, converts these audio signals into radio broadcasting and transmits the audio signals. radiofresuensia to a radio 416 for reprodussión on one or more radio speakers 424. The audio output from the audio producing device 412 is transmitted (for example, by means of a wire) to a radiofresuensia audio-frequency converter 458 maintained at the interface 410. This sondeverter 458 converts the audio signals to radiofresuensia and a transmitter Radio Frequency 460 transmits the signals to the radio 416 via an interface antenna 426. The signals are received by the radio 416 by means of a radio antenna 418 and reproduced on the radio bosins 424. The radiofrequency transmitter 460 transmits the signals to the radio 416 in a normally-flowing mill, such as 88.1 MHz. The interface 410 may also include a bosin 472 and a bosina amplifier 474, the sual also resides the produced audio signals from the device 412. The amplifier 474 and the horn 472 temporarily reproduces the audio signals received from the audio output device 412, so the user can adjust the radio 416 to the appropriate frequency to receive the signals from the transmitter 460 of radio frequency. A battery eliminator 456, which is present at the interface 410, can be inserted into the reseplaster 441 of the vehicle's signet assembly. to display the interface 410 to the external power source 442. The interface 410 also includes a sonorous sonorous-sorptive current sonority 457 (CC-CC), which supplies power to several interface somatics and which can be played to a battery 444 of the audio output device 412 to supply the power to the audio. 412 produstor audio device. Alternatively, the CC-CC sonar 457 does not need to supply power to the device and / or may be insorporated in the 456 eliminator of the battery eliminator. The interface 410 also includes a saver 475, blown between the antenna 426 of the interface and the smoke 456 of the battery eliminator. The sapasitor blows the radio-frequency signals generated by the RF transmitter 460 to the connection between the external power source 442 and the radio 416. The connection between the external power source 442 and the radio 416 operates as an additional antenna, the antenna it is completely buried inside the car. Thus, the capacitive choke greatly reduces any parasitic emission of signals to the outside of the car. Preferably, the value of the sapator 475 is in the approximate range of 100 pf. It should be noted that the sapivative hyphenation, previously described, can be insorporated in any of the dissenting modalities of the present invention.

Figure 9 is a block diagram of yet another embodiment of the present invention, in which a 510 interface is available is a radio 516 RBDS (Radio Broadcast Data System). The RBDS radio 516 is capable of displaying digital signals that may include information, such as the name of a transmit transmitted sound, which may be displayed on the display panel (not shown) incorporated in the RBDS radio 516. In addition, the radio 516 RBDS can also receive digital command signals, which automatically activate the 516 RBDS radio, and / or adjust the frequency and / or volume of the 516 RBDS radio. Similar to the other embodiments of the present invention, discussed above, the interface 510 can be connected to a wireless communication device 512, such as a portable telephone or the like, the sual somunisa is an external compartment 566 via an antenna 514. The interface 510 includes an audio-sound meter to radio frequency 558, the audio system receives the audio output from the wireless sounding device 512 and converts the audio signals into radiofrequence. A radio-frequency transmitter 560 then transmits the signals to the radio 516 RBDS via an interface 526 antenna. This radio 516 RBDS receives the signals via a radio antenna 518 and reproduces the signals on one or more speakers 424. The interface 510 also includes a microphone 568 for receiving the audio signals from a user and send those signals to the wireless somunisation device 512 for transmission to the external station 566. The interface 510 also includes a RBDS transmitter 561 sual, in response to the audio output received from the 512 wireless somunisation device 512, transmits digital signals from the radio to 516 RBDS. The digital squelch signals can automatically arouse the radius 516 RBDS and / or adjust the fresness and volume to receive the signals from the wireless somunisation device via the radio-frequency transmitter 560. The 561 RBDS transmitter eliminates the need for the user to adjust the radio before sending or receiving information from the wireless somunisation device 512. As in the other embodiments of the present invention, previously discussed, the interface 510 can be output to an external power source 542, such as the battery of a car, by means of a reseptulo 541 of the ensign of the signer ring and a shield. 556 of the battery eliminator. The interface 510 (or alternatively the 556 plug of the battery eliminator) includes a DC-DC converter 557, which is supplied to a battery 544 of the wireless somunisation device 512 and the external power source 542, to supply power to the components of the device. interface 510 and, optionally, to the wireless somunisation device 512. The interface 575 may optionally also include a sapacitor 575, coupled to the interface antenna 526 and the ensoufe 556 of the battery eliminator, as described in the embodiment shown in FIG. 8. The interface 510 may also include, opsionally, a bosina 572 and a bosina amplifier 574, for temporarily reproducing the audio signals received from the wireless somunisation device 512, before properly adjusting the radio 516 RBDS. In addition, the interface 510 is also available at any standard radius. (If the 510 interface is a standard radio, the 561 RBDS transmitter is not required). Figure 10 is a block diagram of yet another embodiment of the present invention, in which an interface 610 can be sonar to a digital device 612 of a computer, such as a portable computer and a modem, a personal somunator, or the like. As in the previously discussed embodiments of the present invention, the interface 610 includes a radio frequency sound transducer 658 and a radiofrequency transmitter 660, which transmits the signals to a radio 616 via an interface antenna 626. The interface 610 can be tuned to an external power source 642, such as a car battery, by means of a 641 reseptipulo of the ensign of the signer's ring, and a 656 of the battery eliminator. A DC-CC 657 sonverter is insorporated in the interface 610 or the 655 eliminator of the battery eliminator and can be used to a battery 644 of the digital pumping device 612, to supply power from the external power source 642 to the 610 interface and the digital somputation device 612. The interface 610 may also optionally include a speaker 672 and a bosina amplifier 674, as it was disengaged in relation to the other embodiments. In addition, as shown in the embodiment of FIG. 8, the interface 610 may also include a 675 sapasitor asymmetric to the interface antenna 626 and the 656 eliminator of the battery eliminator. The digital computing device 612 may include, for example, a portable computer, which includes a digital computer and a data processor 678, an audio-to-digital converter 680 and a digital-audio converter 682. The digital computing device 612 may furthermore display a wireless somun- sanity interface 684, such as a mobile telephone, to sleep are an external station 666 via an antenna 614, and a digital processor 686, such as a cellular modem, for processing the signals transmitted to or received from the external cell 666.

A misophone 668 can be internal or sonar to the digital device 612 of somputation, to accommodate the voice signals produced by the user. The speech signals are sonded into digital signals by the audio-to-digital sonicator 680 and transmitted to the eternal station 666 via the wireless somunisation interface 684. Alternatively, the misophone 668 may be embedded in the interface 610. The incoming signals received by the wireless somunisation interface 684 from the external cell 666 are converted into audio signals by a digital-to-audio converter 682. Similarly, the produced signals generated by the digital processor 686 or the digital computer and the data processor 678 can be converted to audio signals by the converter 682. These produced audio signals are provided to the radiophresuensy audio-frequency converter of the 610 interface. , where they are sonded into radiofresuensia signals and transmitted to radio 616 by the radiofrequency transmitter 600 for reprodussing in one or more radio bosses 624. Alternatively, the somponents of the interface 610 and the digital pumping device 612, can be integrated into a removable card for a portable tablet. Specifically, the plug-in card can include, for example, the wireless somunisation interface 684, the digital resistor 686 and the transmitter 660 radiofresuensia. In addition, the interface 610 (or the integrated card) may include a system of voice resynchronization sirs, to allow a user to fully scan the digital device 612 for pumping are freedom of the hands. Numerous modifications and alternative modalities of the invention will be evident to the experts in the matter of the previous split. Therefore, this dessripsión should be interpreted as only illustrative and are the purpose of teaching the experts in the field the best way to bring to taste the invention. The details of the estrustura can be varied substantially, without departing from the spirit of the invention, and the exclusive use of all modifissions that are taught within the attached claims is reserved.

Claims (46)

1. CLAIMS 1. An interface, the sual can be to an external source of somunisasiones, for the asseso of the source to a radio, which includes a radio receiver and a bosina, this interface somprende: a sonvertidor, the sual sonvierte the signals of incoming audio, from the external source of somunisations, to radiofrequence signals; and a transmitter, the sual transmits the fresuensia signals to the radio receiver, in which the audio signals are reproduced on the radio bosin.
2. 2. The interface, according to claim 1, which also includes a misophone, the sual resides a produxed voice signal and transmits this signal produced to the external source of somunisasiones.
3. 3. The interface, according to claim 1, which also suffers a bosin, sual reproduse a signal generated by the external source of somunisasiones, suando the source resibe an incoming signal.
4. 4. The interface, according to claim 1, the sual is housed in a support, capable of supporting the external source of somunisasiones.
5. 5. The interface, according to claim 1, the sual is housed in a remote housing, which can be connected to the external source of communisations.
6. 6. The interface, according to claim 1, can be connected to a battery eliminator, to supply energy from an external source of energy to the external source of communisations.
7. 7. The interface, according to claim 6, in which the battery eliminator also includes an element for twisting an internal battery of the external source of somunisations, when the device is not used.
8. 8. The interface, according to claim 1, the sual is housed inside an adapter cable, which can be connected to an external source of energy, to supply power to the external source of communications.
9. 9. The interface, according to claim 8, which also comprises a battery eliminator for modifying an internal battery from the external source of communisations, and a battery-operated sergeant, for twisting an internal battery from the external source of somunisasiones, suando no se use the device
10. 10. The interface, according to claim 1, which also includes an antenna, for transmitting radio-frequency signals from the transmitter to the radio receiver.
11. 11. The interface, according to claim 10, which also sompas a sapasitor, asoplado between the antenna and an external source of energy, which supplies power to the radio.
12. 12. The interface, according to claim 1, in which the radio is a radio RBDS (Radio Broadcast Data System) and the interface also somprende a RBDS transmitter, to transmit a signal of somando and adjust the radio suando a signal is received by the external source of somunisasiones.
13. 13. The interface, according to claim 12, in which the transmitter RBDS transmits a knob to adjust the sweating radio is sent a signal produced by the external source of communications.
14. 14. The interface, according to claim 1, which also includes an element to transmit identification information of the incoming signal, from the external source of somunisasiones to the radio, and reprodusir the information on the radio.
15. 15. The interface, according to claim 14, which also includes a memory, to store the identification information of the incoming signal.
16. 16. The interface, according to claim 1, further comprising an annunciator, which develops a tone when an incoming signal is received by the external source of somunisasiones.
17. 17. The interface, according to claim 16, further comprising an element for delaying the transmission of the incoming signal from the interface to the radio, to allow adjustment of the radius.
18. 18. The interface, according to claim 1, which also includes a voice resonation element, to make it possible for a user to control the external source of communications through voice somandos.
19. 19. The interface, according to claim 1, which also includes a speech recognition element and a radio control element, to make it possible for a user to control the radio through voice commands.
20. 20. The interface, according to claim 1, in which the external source of somunisasiones is a portable seal phone.
21. 21. The interface, according to claim 1, in which the external source of somunisasiones is a digital device of somputasión.
22. 22. The interface, according to claim 1, in which the external source of somunisasiones is a fixed-sealed telephone and this fixed-sealed telephone is somunisa are a portable sealed telephone, to increase the power transmissions of the portable telephone.
23. 23. An interface, which can be used between a portable telephone and a fixed telephone, to somunicar the fixed telephone to a radio, which includes a radio receiver and a bosina, this interface somprende: a transceiver, which resides the operating signals of the telephone from the portable telephone and transmits the signals to the fixed telephone; a converter, which converts incoming radio signals from the landline to radio frequency signals; and a transmitter, which transmits the radiofresuensia signals to the radio receiver, in which the audio signals are reproduced on the radio bosin.
24. 24. The interface, according to claim 23, which also includes a misrophone, the sual resides a voice signal produced and transmits this signal produced to the landline.
25. 25. The interface, according to claim 23, which also suffers a bosina, sual reproduse a signal generated by the landline, suando is received an incoming signal from the external selumn of somunisasiones.
26. 26. The interface, according to claim 23, in which this interface and the landline telephone can be routed to an external power source.
27. 27. The interface, according to claim 23, in which this interface can be used to a battery eliminator, to supply power from an external power source to the portable telephone.
28. 28. The interface, according to claim 27, in which this interface is housed in a support, capable of supporting the portable telephone.
29. 29. The interface, according to claim 27, in which this interface is housed in a remote housing, which can be played to the portable telephone.
30. 30. The interface, according to claim 23, in which this interface is housed in an adapter cable, which can be used to an external source of energy, to supply power to the portable telephone.
31. 31. The interface, according to claim 23, further comprising a voice recognition element, to make it possible for a user to scan the portable telephone through voice somandos.
32. 32. The interface, according to claim 23, in which the radio is an RBDS radio and the interface also includes a RBDS transmitter, to transmit a knob to adjust the radio sumar is in use the portable telephone.
33. 33. A system for communicating a portable cellular telephone to a radio, which includes a radio receiver and a speaker, this system comprises: an energy converter, the sual is a signal between the levels of potency; and an interface, which can be used on the phone, where this interface includes: a transmitter-reseptor, the sual is somunisa are the phone to be sealed and the sonverter of energy, a sonverter, the sual is an incoming audio signal, received from the telephone, to a radiofrequence signal, and a transmitter, the sual transmits the radio-frequency signal to the radio receiver, in which the audio signal was reproduced on the radium bosin.
34. 34. The system, according to claim 33, in which the energy converter comprises an external antenna, to communicate are an external module of somunisasiones, and an internal antenna, to somunisarse are the interface.
35. 35. The system, according to claim 34, wherein the power converter further comprises a transmitter-receiver, which receives signals from the external communications cell and the interface, and a repeater, which amplifies the signals.
36. 36. The system, according to claim 33, in which the interface also somprende a misrófono, sual receives a voice signal produced and transmits this signal to the cell phone.
37. 37. The system, according to claim 33, in which the interface also comprises a bosina, sual reproduse a signal generated by the telephone to be sealed, suando this telephone resibe an incoming signal.
38. 38. The system, according to claim 33, in which the interface and the energy sonverter are synthesized to an external source of energy.
39. 39. An interface, which can be tuned to an audio produstor device, for the somunisation of the device to a radio, which includes a radio receiver and a bosina, this interface appears: a sonar, the sonar is the incoming audio signals , from the audio producing device, to radiofrecuensia signals; a transmitter, the sual transmits the radiofresence signals by means of an antenna to the radio receiver, in which the audio signals are reproduced on the radio horn; and a capaitor, blown between the antenna and an external source of energy, the sual supplies power to the radius.
40. 40. The interface, according to claim 39, which also suffers a bosin, sual reproduse a signal generated by the audio producing device, when this device is activated.
41. 41. The interface, according to claim 39, in which the interface is housed in a support, capable of supporting the audio produstor device. / - ''
42. 42. The interface, according to claim 39, in which this interface is housed in a remote housing, which can be played to the audio producing device.
43. 43. The interface, according to claim 39, wherein this interface can be connected to a battery eliminator, to supply power from the external power source to the audio producing device.
44. 44. The interface, according to claim 43, in which the battery eliminator also includes an element for 10 Twist an internal battery of the audio produstor device, but the device is not used.
45. 45. The interface, according to claim 39, in which this interface is housed in an adapter cable, which can be connected to the external power source, to supply power to the audio producing device.
46. 46. The interface, according to claim 39, wherein the radio is an RBDS radio and the interface also includes a RBDS transmitter, to transmit a squelch signal to adjust the radio, where the signal is sent by the device. 20 audio produstor.