CN1088035A - Signal distribution system - Google Patents

Abstract

A signal distribution system, its program source by transmission system with a plurality of receiver unit communications, the signal that receiver unit regeneration obtains from the source.Each receiver unit comprises time quantum holding the time quantum value, when its during greater than predetermined value, make the receiver unit can regenerated signal.Time quantum periodically reduce (when receiver unit uses) to the time of advent time cell value drop to below the predetermined value, receiver unit can not be worked.Give the time quantum remain in the memory pays and provided go out sale system and then can carry out the use of receiver unit by the user.A kind of transmitting device and a kind of transceiver machine equipment have also been disclosed.

Description

Signal distribution system

The present invention relates to signal distribution system, particularly disclose the device that a kind of signal timing that allows to be used for various purposes is sold.

Audio Distribution System is known in the art, and be widely used in providing on the trade route aloft recreation, recently, similarly principle is applied to the passenger traffic of coach and train, common this matching requirements user rents a set of headphones, then earphone is inserted aircraft, in the distribution exit jack of arranging near seat in passenger vehicle or train and the main cabin.The user just can select the specific channel of broadcasting in the main cabin and regulate voice output volume in the earphone then.

This device, although be gratifying in operation, it still is imperfect.At first, owing to will rent earphone, this just requires manually to carry out the distribution of earphone before travelling or in the travelling, and when route finishes it is regained.And, for hygienic reason, require earphone is cleaned, or resemble nearest institute and do, change the lining of earphone.

This system also has a shortcoming, is to carry out the distribution of sound by earphone is inserted the accessible socket of user.Socket will attract the saboteur, and Here it is, and why this distribution system is opposite with the long-distance railway network with special-purpose course line, passenger vehicle, can not be commonly used a major reason in mass transit system.And the cost of routing network reaches its weight in some cases, also is important.

In order to make Audio Distribution System enter public transport network and similar place, the expense that need provide a kind of measure to regain installation and operation, and need not resemble use rent a little manpower get involved, this comes down to the vandal-proof device of needs.

And then, many utilizations are arranged, mainly constantly keep the electronic system of service by the user.For example, common radio and television receiver, and GPS navigation system.In this mode, in case bought receiver, the just careless received signal of user, and need not pay to the supplier.Cable television system attempts to overcome this problem, but the capital cost of this system has hindered its enforcement.

The objective of the invention is by providing the signal distribution system that allows to use according to the paying time corresponding to overcome in fact or improving part or all of above-mentioned difficulties.

According to the present invention, disclosed signal distribution system comprises an emitter, the signal that obtains from a source of emission and

At least one receiver unit is suitable for receiving above-mentioned signal, and described receiver unit comprises:

One time cell memory is used to store a time cell value that obtains from a time unit distribution system;

Control device, if be used for readout time cell value and this value greater than a predetermined value, the reception of described signal can be carried out, and reaches;

Means for correcting is used to change the time quantum value.

According to a first aspect of the invention, disclosed timing selling signal distribution system comprises: a source and at least one acceptor unit, this unit is suitable for receiving from described source and one or more information signal and a timing selling signal output, described acceptor unit comprises a control device, be suitable for keeping the record of the time quantum value of revising by described timing selling signal, the work that wherein said control device is suitable for using described time quantum value to make described acceptor unit can receive described information signal in a predetermined time period, thereby the useful output of described acceptor unit is provided.

Best, the timing selling signal is whole with described information signal.Usually, information signal can comprise one-period property time quantum signal, is suitable for changing the time quantum value so that after the described time limit scheduled time, described acceptor unit can not receive brown information signal.

Generally, this signal source can be a radio frequency (RF) reflector, perhaps a wired distribution communication system.Acceptor unit can comprise a RF receiver or can directly be linked to the device of distribution system.

According to a second aspect of the invention, disclosed a kind of Headphone device, having comprised:

Regenerating unit is used to the audio program signal of regenerating and being launched, as acoustic signal and

Control device, be suitable for compiling program by user's journey of selecting timing to sell element number, the described unit that same periodicity timing selling signal is compared can make by the use of described Headphone device when the time interval to the use equivalence of described unit has used up, and described control device can not be worked described regenerating unit.

Audio program signal both can resemble to be launched the radio frequency signals, or by the magnetic induction emission, or provides by being assigned wire system.

According to a third aspect of the present invention, the timing that is disclosed is sold Audio Distribution System and is comprised:

Headphone device according to second aspect; With

Emitter is arranged to launch at least one described audio program signal.

For example, the timing selling signal can receive-resemble one by described Headphone device becomes with described audio program signal and to receive overall signal or the additional signals.The timing selling signal also can be the clock signal that inside produced at described control device.In both cases, the reception of described timing selling signal can be used in and reduces described unit to zero location, perhaps, increases a counting and compares with the program amount with described unit.

Best, Headphone device comprises a sound pick up equipment, is suitable for receiving the energy by described emitter emission, and it is become electric energy, is used for the driving of described regenerating unit and described control device.Perhaps except that sound pick up equipment, Headphone device is by battery-operated.And then Headphone device can directly be powered and driven by a wired system.

Generally, regenerating unit comprises that an acceptor device is used to receive described audio program signal, and in certain embodiments, receiver and pick-up are formed an independent device.

And by the signal that is more suitable for being received by acceptor device and/or sound pick up equipment, Headphone device can be sold the unit by timing and program again.

According to the 4th aspect of the present invention, disclosed emitter is suitable for using together with the system of the 2nd aspect, and wherein, emitter is constituted as emission timing selling signal.

According to the 5th aspect of the present invention, disclosed Headphone device comprises an electric connector shell; The transducer of the audio signal that received by described coupling is used to regenerate; With the read-only storage that is arranged in the described shell, it can and can not regenerate described signal by described transducer.

According to the 6th aspect of the present invention, disclosed vendor is suitable for the program of rearranging that the unit is sold in timing in the earphone aspect the earphone of first aspect or the 5th.

According to the 7th aspect of the present invention, disclosed timing selling signal distribution system according to first aspect, wherein signal source is suitable for user's access and the control by acceptor unit, and signal source further comprises: sell the combined information on the permanent or semipermanent recording medium that is recorded in advance of signal and be used for described prerecorded information and timing selling signal are read and sent into the device of described acceptor unit with timing.

Best, the signal that information and timing are sold is encoded, and the equipment receiver is with the described signal of decoding.Usually, recording medium can be audiotape or video tape or disk, computer data or program program disks or read-only storage or analog.Recording medium can arbitrarily be bought by the user by any suitable distribution system, rents and obtains.

According to the 8th aspect of the present invention, disclose the timing selling signal distribution system according to the 1st aspect, wherein, signal source comprises and is used to compress or the device of the time range that spread signal distributes, and receiver comprises, is used to expand or compress the device of the time range of received signal conversely.Expansion or compression set comprise the memory storing that is used for information and timing selling signal, and the timing selling signal is operated control timing unit value fast.

Best, it is digital that the signal that information and timing are sold is actually, and can encode.

This aspect can be used for, and for example wired or satellite television transmits and can be in the reception of the information of a program and timing selling signal sells the regenerate information signal of another program of control with corresponding timing.

Many preferred embodiments of the present invention describe with reference to the accompanying drawings, wherein:

Fig. 1 is the block diagram of expression one embodiment of the present of invention;

Fig. 2 represents the shape according to the embodiment of Fig. 1;

Fig. 3 represents to allow the alternative form of long-range induction and/or reception;

Fig. 4 represents metered machine;

Fig. 5 is the block diagram of the multichannel audio distribution system of another embodiment;

Fig. 6 is the block diagram of the line driver of Fig. 5;

Fig. 7 is the block diagram of the headphone driver of Fig. 5;

Fig. 8 A and Fig. 8 B are respectively the perspective view and the block diagrams of the Headphone device of Fig. 5;

Fig. 9 is the block diagram of the signal distribution system of most preferred embodiment;

Figure 10 has described the layout of transmit network;

Figure 11 is used for the sequential chart that Fig. 9 and 10 encodes;

Figure 12 is the block diagram of most preferred embodiment of the individual acceptor unit of Fig. 9;

Figure 13 is the circuit diagram of the receiver/transmitter of Figure 12.

With reference to Fig. 1, to express a timing and sell Audio Distribution System 10, it comprises an emission system 20 and a Headphone device 30.Emission system 20 can be arranged in main cabin, the inside interlayer 22 of a structure such as aircraft, coach or train.And fixed buildings such as office block, railway platform and analog also can be built or be fitted up with homologous ray 20 combinations.

Best, emission conductor 24 is positioned in the back wiring of interlayer 22.Isolated in conductor 24 sky is many electromagnetic inductors 26, only expresses one among Fig. 1 for the sake of simplicity.Inductance coil 26 allows the electromagnetic coupled of modulated carrier signal, and emission on conductor 24 is passed main cabin interlayer 22 to be received by Headphone device 30.

Electromagnetic inductor 26 can be half of E shape iron core or pot core transformer, directly places the back of interlayer 22.In this mode, interlayer 22 shows as a flat board, comes down to vandal-proof surface, can make the electromagnetic coupled of sound distributing signal pass this surface.

Headphone device 30 comprises an inductive pickup device 32, and it is with inductor 26 electric cooperations, and its utilize magnetic or suction device be placed near interlayer 22 and/or attached on the interlayer.The key seat of other scheme such as clip, hook and/or fluting also can use.In this mode, inductor 26 and pick-up 32 form an electrical transformer together and are used to pass interlayer 22 and go forward side by side into the coupling of the modulated carrier signal of earphone 30.

Inductive pickup device 32 at first by always in succession line be connected on the power supply 36, to the AC signal rectification that enters pick-up 32 responded to and the remainder power supply of giving Headphone device 30 thus.Be connected to the not expression in the accompanying drawings of power supply of remainder, they are known by prior art.

In this explanation, audio signal is considered to the signal of any 20KHz of being lower than, and anyly has a signal that is higher than the 20KHz frequency, is used to modulate purpose as those, is considered to radio frequency (RF) signal.

Inductive pickup device 32 also is suitable for receiving the RF signal and is connected on the RF amplifier/filter 40 by another line 38, allow pick- up 32 and 40 decouplings of RF amplifier/filter be coupled to each other.This just can make the latter still make the signal that is received by pick-up 32 that peak response be arranged by power supply 36 power supplies.

In most preferred embodiment, system 10 is used for having the sound distribution of about 200Hz to the 3000Hz audio bandwidth.In this mode, audio signal can for example be used frequency modulation (FM) from conductor 24 emissions, has the carrier frequency near 60KHz.Utilize various modulation technique commonly known in the art, the multitone frequency domain channel can be provided by conductor 24, all is based upon around the single carrier frequency.Therefore, RF amplifier/filter 40 forms the logical bandwidth that is equivalent to modulating frequency with its bandwidth that acts on of band that has around the carrier frequency at center.The RF signal by one wave detector/demodulator 42, carries out demodulation to those signals with transmit frequency then.Demodulator 42 comprises base band output 44, and it forms output one base-band audio signal with about 200Hz to 3000Hz bandwidth.Base band output 44 is regulated 58 by a volume and is supplied with Earphone Amplifier 54, and it generates the sound of earphone transducer 56 in advance.

Demodulator 42 also offers one audio frequency/tone wave detector 48 to an auxilliary band output 46, and it forms the detection time pulse or regulates tone, and this pulse or tone are from launching on the conductor 24 with all period interval emissions.When a pulse or tone were detected, wave detector 48 outputs one signal was given a microprocessor timing memory control unit 50.This unit 50 comprises-E 2PROM or non-volatile RAM memory and microprocessor logic that it allows to sell the pre-programmed program of the numeral of unit to this memory with the timing that the sound of representing to be bought by the user receives.By receiving tone that is detected or the pulse from wave detector 48, the time quantum value in the memory reduces 1.

In this mode, Headphone device 30 can be when connecting with received audio signal, the predetermined period of time of working.When being stored in E ²When the timing sale unit that the quilt among the PROM is purchased in advance reduced to zero, the logic function of control unit 50 can not work Earphone Amplifier 54 by control switch 52, the sound reproduction that transmits that stops earphone transducer 56 to carry out thus.Dispose expiration in case preset the time of program in this mode, Headphone device 30 is the reproduction operation of audio signal no longer just.

Get back to Fig. 2 now, express a kind of state of the system 10 of Fig. 1.Pipe 60 is arranged on the top board (not shown) suspended, and the carrying modulated carrier signal, or by electric conductor, or by waveguide, as known in the art.

Represented Headphone device 30 comprises a shell 62, and it links with earphone transducer 56 by pair of lead wires 66.Shell 62 comprises a coupling surface 64, and it is attached on the pipe 60 by for example magnetic.

The whole elements that comprised the circuit of the device 30 shown in Fig. 1 in the shell 62 are except transducer 51.Also can see volume adjuster 58.Use this shape, device 30 can receive induction electric energy to be used for the power supply use of its circuit from managing 60.

In the alternative form that Fig. 3 represents, transducer 56 and lead-in wire 66 are linked on the regulon 72 in the represented Headphone device 70.Regulon 72 comprises an antenna 74, is suitable for receiving the RF emission that replaces distributing among Fig. 1 and 2 (induction) emission system 20.

In this mode, one little, and unobtrusive transmitting antenna is arranged in aircraft, train, the passenger vehicle etc., and the RF receiver (prior art is known) that is arranged in regulon 72 to serve as reasons carries out RF and receives and launch the program audio signal on the spot.Regulon 72 can be by the battery source power supply of known manner.

Alternatively and/or replenish ground, a pick-up that is similar to homologue among Fig. 1 can be used to replace antenna 74.Pick-up is formed the program receiving audio signal and from the electric energy (as the pipe among Fig. 2 60) of remote power source in this embodiment.It is suitable that induction range reaches 3 meters.In this mode, Headphone device 70 is passive, and its it does not need to carry out physical connection with emission part or power supply as a result.

See Fig. 3 again, have one to carry shell 78 and be used for regulon 72, lead-in wire 66 and transducer 56.A clip 80 also is to provide in common mode.

In the embodiments of figure 3, the timing of Headphone device 70 is sold operation class and is similar to Fig. 1's.Yet, be not reception-timing selling signal, but in control unit 50, provide a clock to preset the time value of program with minimizing.Correspondingly, the reading of a counter can be increased with programming time value and compare.For example, clock or counter also can be operated or by the direct powered operation of electric energy basically in the reception of audio signal (at demodulator 42 places).

When selling the expiration that distributes the unit, device 30,70 is no longer worked, and Headphone device 30,70 can be inserted in the suitable automatic vending machine 90 (as shown in Figure 4).

Vendor 90 comprises for example LCD of a display 91(), with indication user's operation.One row's bank note receiving slit 92 and coin tray 93 are arranged for the user and drop into the payment that money is sold with the timing that is used for Headphone device 30,70.

Machine 90 has two operate portions and is divided into two and half ones 98 and 99 with corresponding each operate portions respectively.Two and half ones 98,99 all comprise user's enter key 94, and it allows to carry out suitable selection on half and half one.

Half one 99 has the Headphone device 30,70 that carries shell 78 for buying and providing, its be with shown in outlet 96 draw.

Half one 98 is the usefulness of the sale of timing unit.Shell 62(or regulon 72) be inserted into socket 95 as shown, inductor or RF reflector are wherein arranged.For example, inductor is complementary with the work of the inductor 26 of Fig. 1 and produces the work of Headphone device 30 so that preset program for the memory in the control unit 50, in this mode, vendor 90 can be exported a series of control signals, promptly by demodulator 42 demodulation, detect by wave detector 48, and forward microprocessor control unit 50 to and translate and select.Thereby, put into the actual amount of selling in the machine 90 according to the user, memory wherein can be corrected for a new value.After this operation, Headphone device 30 can be coupled to carry out as preceding work with emission system 20 once more then.

Be inserted into the place of socket 95 at the device 70 that is used to receive the RF signal, be arranged in the additional RF reflector program of reprogramming memory in the above described manner wherein.

Get back to Fig. 1, In yet another embodiment, demodulator 42 offers operable switch of user to select the arbitrary transmitting channel by the signal of system's 20 broadcasting.For example in passenger vehicle or flight environment of vehicle, can provide 5 channels,, be used for cooperating spreading over the television indicator that the main cabin is arranged comprising 4 audio frequency or music channel and a video channel.

Selectively, as shown in Figure 2 pass through the transmission that different piece that pipe transmission system also can have configuration is used for different programme contents.For example, with reference to Fig. 2, pipe 60 can comprise many colour-coded parts 82,84, and it is used to launch different programme contents.According to the program that hope receives, Headphone device 30 can be coupled to suitable part 82,84.

And, utilize this form, different price grades can be used to receive the expense of different programme contents.For example, if Headphone device 30 is used to the receiver, video audio signal, the once pulse of minimizing that the video-audio signal can be used to provide per 5 minutes, for example, and correspondingly, the once pulse of minimizing that the standard audio channel signals can be used to provide per 10 minutes.In this mode, the standard audio channel content can have half of price of video channel content.

The program source that is used for Fig. 1,2 or 3 emission system 20 can directly be obtained from the radio or television receiver, perhaps from the medium of any record in advance such as CDROM and tape source such as video tape and/or high quality audio tape obtain.When using the video tape system, can use an independent high-fidelity video cassette recorder so that 5 audio channels to be provided, each all has the bandwidth at least about 3KHz.In this mode, an independent video tape can provide the entertainment source of a television field frame channel and 4 standards " music " channel, can have different timing if necessary and sell pulse.Picture recording sound accompaniment channel matches with the same video image channel of common mode.

Still with reference to Fig. 1, best, each power supply 36, RF amplifier/filter 40, demodulator 42, wave detector 48, controller 50, switch 52 and amplifier 54 consist of an application-specific integrated circuit (ASIC) that uses separately, and it can easily be placed in the shell of earphone transducer 56.In this mode, the global shape of Headphone device 30 can approach be used in pocket cassette recorder or analog in the identical size of known Headphone device.

Usually, earphone transducer 56 consumes greater than the power of 120 milliwatts and has the low-power global design, and about 100 milliwatts to 2.5 of device 30 remaining components consume watt depend on structural shape.Thereby, in the embodiment in figure 1, require inductive pickup device 32 to extract suitable amount of electrical power from emission conductor 24.

In this case, the supply of high frequency modulated carrier wave help efficiently, the structure of machine for miniature inductors 26 and pick-up 32.For example, the HD Audio bandwidth of 20KHz if desired just needs the carrier frequency of about 1MHz to 2MH z.Such frequency is to small scale structures, and the transformer of higher-wattage is favourable.

And then, although forming as conductor 24, inductor shown in Figure 1 26 is in parallel, another kind of wiring is a plurality of inductors 26 of polyphone in the main cabin.In this mode, inductor 26 directly interconnect the cost that can reduce element.

At a further alternative form,, also can provide an auxiliary battery banks to come to be coupled to each other to power to remaining element with power supply 36 although described embodiment directly provides its power supply to launch on the conductor 24.

Get back to Fig. 5 now, represented timing sale multichannel audio distribution system 100 can form and be used for as aircraft, in railcar and the passenger vehicle.System 100 comprises the signal source of a video cassette recorder 102 as video and audio frequency, and can use a video display unit (VDU) 108 to come display video signal thus.VCR102 is used to export three audio channels 104 and gives a line driver 110, and its audio signal 5 dispensings are distributed in aircraft, the many headphone driver 150 in the main cabin of train or passenger vehicle.Enter each headphone driver 150, insert two Headphone devices 190 so that carry out sound reproduction from the audio channel output decoder of VCR102 through selecting.

The audio channel that the image content that go up to show with VDU108 that generally comprises audio channel 104 matches and two are used to talk and/or the channel of music.Best, VCR102 is a high-fidelity VHS type device.

According to this configuration, system 100 goes up the picture recording content that shows at VPU108 can offer user's vision and sense of hearing selection, perhaps selects one from two audio channels.

Get back to Fig. 6 now, line driver 110 comprises direct current input 112, for example is used to accept 12 volts of direct current supplys from passenger vehicle.In order to be used for aircraft, also can use the power supply of 400Hz, input 112 is added on the DC-DC converter 114, and it can provide 24 volts of direct current outputs 116 of 6 amperes to output on the headphone driver 150, and converter 144 provides 5 volts of direct currents and 12 volts of direct currents also can for other system works.5 volts of direct currents are used in partly in the line driver 110 and are used for logic operation, and 12 volts of direct currents are used in the line driver 110 partly, also are to offer headphone driver 150 by exporting 116.

Power monitor unit 118 monitors from the voltage and current output of converter 114 and overvoltage and overcurrent protection is provided.Detectable voltage signals of power monitor 118 output 120 are given control microprocessor 122, the state that its decision is powered by converter 114 and export one can/can not signal so that under the major failure situation, turn-off converter 114.

Line driver 110 receives from the audio frequency of VCR102 by coupling 126 and imports 104.Audio frequency input 104 is represented as has channel part 104A, 104B and 104C.They be imported into that one group of circuit amplifies 130 in.The sleep channel signals 128D that also has a sleep channel generator to provide of incoming line amplifier 130.The sleep channel generator uses digital audio to synthesize the sea/sound of sea wave that produces gentle simulation, its be added on the line amplifier 130 so that further audio channel be assigned to headphone driver 150, sleep channel signals 128D helps people's sleep and separates ambient noise from aircraft, train or passenger vehicle.4 audio output signal 134A of line amplifier 130 outputs, 134B, 134C and 134D give coupling 136.

By means of analog-digital converter indispensable in microprocessor 122, each output 104A of microprocessor 122 monitorings, 104B, the audio signal level of 104C and 104D.When audio signal occurs, microprocessor 122 can be exported one and be interrupted each headphone driver 150 require signal 140 to give in the system 100, thereby so that starts the signal timing that the time decreased program in each headphone driver 150 carries out VCR102 is sent and sell.When not having audio level to occur, the time decreased function is inoperative.Microprocessor 122 also can receive information from headphone driver 150 by means of pulse incoming line 138.

Get back to Fig. 7 now, each headphone driver 150 comprises an energy with coupling 136 close-fitting couplings 151, is used for the reception from audio signal 134 outputs of line driver 110.Headphone driver 156 forms provide audio frequency output can for two Headphone devices 190, and thereby the pipeline transmission circuit that comprises two parallel operations to be used for providing signal to each Headphone device 190.

Headphone driver 150 comprises that one is connected to the impulse line 138 of line driver 110 and is interrupted the control microprocessor 152 that requires on the line 140.Microprocessor 152 also is coupled to each other with key plate 152 by a key plate scanning logic circuit 154, thereby makes the user of a Headphone device 190 select an audio channel and regulate audio output level.Sequentially continuous digital code is added on the key plate scanning logic 154 by key bit scan line 153 microprocessors 152.Each yard that is added on the key plate scanning logic 154 all will arrive microprocessor 152 by means of key plate scanning logic 154 by key detection line 155 by the transducer of tie 157 linking bond plates 156.If a key plate transducer is by the contact of user's finger, the state of key detection line 155 will become logic state, will indicate to microprocessor 152 so that this key starts the appearance on key bit scan line 153 of the sign indicating number of this key.Microprocessor 152 utilizes this sign indicating number to distinguish and is activated key.Key plate 156 can carry out channel selection and the level adjustment as following.

Audio frequency incoming line 134 directly links with two channel switch circuit 158a and 158b, is used for two outputs of headphone driver 156 and works.Channel switch circuit 158a, b provides channel selecting signal 160a, and b is so that from channel 162a of 4 channels, 134 selections, b imports headphone driver 150.Selected channel 162a, b import a level adjustment unit 164a, and b is to regulate the level of the selected channel that uses level adjustment circuit 164b.According to the user by deciding level adjustment signal 166 at key plate 156.

After level adjustment, selected channel signal 162a, b are transfused to preamplifier and synthesizer 168a, and b is to become bionical stereophonic signal 170a, b to the mono source signal transformation from VCR102.By synthesizer 168a, the active filter among the b, audio signal is separated into two discrete audio channels, and each all comprises independent audio band, so that the realistic simulation of real stereophonic signal to be provided.It is added to power amplifier 172a then, on the b, offers corresponding earphone socket 174a then, b.Also can be linked to earphone socket 174a to I/O data wire 176, on the b so that data are come and passback to be passed to Headphone device 190(as described below), the same with data clock signal 178.

What directly connect microprocessor 152 and earphone socket 174a is line of chip select 180, and same, line of chip select 182 directly connects earphone base 174b and microprocessor 152.

Get back to Fig. 8 A and 8B now, shown Headphone device 190 comprises edge connector seat 191, so that insert among earphone socket 174a or the 174b.Edge connector seat 191 is installed on the shell 198 of sealing EEPROM192, comprise that connecting I/O counts line 194, data clock line 195 and line of chip select 196, with with line shown in Figure 7 176,178,180(or 182) function combines, and what draw from edge connector seat 191 is to be connected to two lead-in wires 197 on the earphone transducer 193 with usual way.Use this structure, EEPROM192 can be used to store digital encoded data, to be used to determine to use the effective time of specific Headphone device 190.(see figure 6) when audio level appears on the signal monitoring line 32, the time decreased of using for earphone is activated, so that when Headphone device 190 inserts in the socket 174, the microprocessor 152 of corresponding headphone driver 150 can detect the memory content of EEPROM192 and whether represent a value with the content of decision EEPROM192, so that Headphone device 190 received audio signals.If digital code is expressed as an expiration value, just can not carry out the regeneration of audio signal.This is by making key plate 156 can not work and make the level adjustment 164 of respective socket 174 to obtain.

If but the content representation of EEPROM192 is an effective storage life, level adjustment 164 can carry out and microprocessor 152 periodic variation EEPROM192 in digital code.When sign indicating number arrived expression expiration value effective time, microprocessor 152 placed level adjustment 166 minimum value that the audio signal reproduced by earphone 193 can not be carried out.

Above-mentioned expression system 100 only carries out letter in the rigid line distribution system by the location of the EEPROM192 in the earphone coupling 198,191 and receives timing and sell.In the method, as embodiment at first, the user of Headphone device 190 can make Headphone device 190 reuse putting a new value so that give for the content of EEPROM192 again in the automatic vending machine of the suitable shape of coupling 191 insertions thus.

And distribution system is sold in timing can be used to the RF system, as standard radio and television broadcasting, or the gps satellite navigation system.In these are used, the receiver receiving broadcast signal, it comprises the receiver indicator number of coding, the back is the time quantum value, receiver indicator identification receiver, receiver receives the later time cell value, and this value can be stored.When time cell value when being effective, can carry out the reception of normal signal, it comprises the timing selling signal that can reduce cell value.When unit value is 0, can not carry out the regeneration of normal signal.

The user of receiver can be by the buying hour unit of paying the bill to one group of unit number.In case pay the bill, transmitter just can be launched suitable receiver and specify device number and time quantum value.

Can know that said system can come be replenished to guarantee that without permission user can not obtain the information of being launched by coding.Thereby, can realize effectively substituting to the cable TV cost.

Fig. 9 has expressed the timing selling signal distribution system 200 of most preferred embodiment.System 200 comprises that one goes out sale system 200, the time quantum that its distributing signal receives and make the effective work that realizes individual receiving element 220.Go out sale system 202 and then supply with receiver unit 220, battery pack and/or time quantum energy cell, it comprises that the purpose of setting up battery is so that give individual receiver unit 200 supply of electrical energy in the scheduled time interval before quitting work automatically.Go out sale system 202 and can be the automatic vending machine with aforementioned manner, sales counter is sold mouth outward, or any other suitable selling device.By selling the transaction of transmitted in both directions to handle in response to user's payment of instruction utilization special project or credit reliably between system equipment and the individual receiver unit 200, time quantum can distribute with going out sale system 202.And time quantum can be with form dispensing from go out sale system 220 of fixed memory module, and this module comprises the layout of a safety, and module can be inserted in the receiver unit 220 so that it can be worked.These measures commonly used in the prior art are suitable for: be not to carry out the exchange of specific memory, for example, sell in the mouth outside a sales counter that time quantum is dispensing freely, is used for being bought by the user repayment of other products and/or service.

The best approach that is used for the transmission of dispensing time quantum is to give the signal receiver 222 of receiver unit 220 by the coupling radio frequency emissions.In this device, receiver 222 is suitable for the such effect of RF reflector (described later) with this pattern.

Distribution system 200 comprises that the program source 204 that is provided by video tape can provide 5 audio channels that reach that have above the 3KHz bandwidth altogether.Other recording medium in advance such as fine groove audio frequency disc record and CDROM also can use.Broadcasting medium such as radio and transmission of television also can be as program source, and time quantum reduces pulse and can be recorded in advance on each audio channel in recording medium such as the video tape, so that each channel that separates has different expenses standards.Correspondingly, at regenerating unit (as VCR), fine groove disc record machine) included, adjunct circuit can provide a time decreased pulse to add in the audio frequency and video programme signal.

Program source 204 outputs to a coded system 206, and it is used for the timing sale code combined so that each audio channel is produced a signal with the audio frequency signal.Such device is used for to audio-frequency signal coding, prevents that thus the time decreased sign indicating number of unauthorized reception from can set by giving the loading slip.Yet they are set up by the tone pulses group that signal source 204 drives by intercepting usually.Tone pulses group is the elimination from signal prior to launching composite signal usually.The microprocessor that coded system 206 preferably is based upon the safe programming on the chip makes the fail safe of this device improve thus.

Sign indicating number " key " is combined to be transferred to receiver unit 226 with the audio frequency signal, and they are handled by the storage translator at this.

Coded system 206 is exported to transmitter unit 208.Unit 208 is generally used for the audio-frequency power amplifier of rigid line transmission system.But also can be the modulated RF generator of suitable type (AM, FM, multichannel chatter or spread spectrum) in other cases.

Transmitter unit 208 is coupled on the suitable transmission system, and it can be a rigid line, closed perception or capacitive coupling, and idle electric or magnetic near field system also can be the electric or magnetic far field system of emission.Near field transmission be about in transmission range in fact less than the place of 1/2 π wavelength.For example, for the transmission frequency in the 3-4MHz scope, reach about 3 to 4 meters scopes with " near field " pattern of using transmission and obtain main advantage.And, also can use infrared ray or Optical Fiber Transmission.

Individual's receiver unit 220 comprises a receiver 222, and it is to constitute according to the type that is used in the transmission system 210 in the distribution system 220.For example, receiver 222 can comprise a wired coupling and be used for the amplifier of rigid line system accordingly.The RF antenna of the electric or magnetic (for example iron oxidation rod) that has RF amplifier and receiver can be provided as an alternative.Perception or capacitive folder, or magnetic supports that pickup can be with in the pointed antenna system in the above.Also can comprise the carrier wave channel selection, can control by decode system 224 or other control safety measure (not shown).

With provide 224 work of the same decode system of System Security Measures with the pulse of demodulation time decreased.A kind of simple time decreased system has only filter and/or logic components so that the time decreased signal is separated from audio signal, same suitable control program reduces a time unit storage 230 and inquiry storage 230 together to determine its state.When the state of time unit remain on storage 230 when having used up audio reproduction be prevented from.

A kind of safe emission system has associating time decreased and the program decoding device of being realized by microprocessor, for example, and according to code data of being launched and logic microprocessor program.When the time quantum in remaining on individual receiver unit 220 had used up, decoding can be prevented from.The reception that such device also can carry out encoded signal when the unit uses up when the time replenishes.This device just has can carry out the advantage that the purchase of unit is sold in timing.

If the signal that is received utilizes chatter or other agility technology or spread spectrum to encode, decode system just comprises the frequency synthesizer control circuit that can handle the work of acceptor unit 222 expediently.

By means of boosting battery, safety time unit storage 230 remains on for example EEPROM of a nonvolatile storage to time quantum, or among the non-volatile emission RAM.Nonvolatile storage can be foregoing decoding integrated circuit; Or discrete circuit element, or the part of removable module.For safe operation, just the time quantum storage forms and can only can enter by regulation safe in utilization.

Decode system is exported to custom system 226, and it forms the programme signal (as video, audio frequency, or data) that utilization is provided by source 204.Custom system 226 generally makes device 228 work.

Thereby custom system 226 and device 228 can be included in the various devices, for example comprise electro-acoustic converter, video demonstration, all machine equipments, be used for the control device of long-range mechanical movement and the audio player of analog.For example, system 200 can be formed replacement through being commonly used in the gas of renting the place or the coin machine among the hot-water heating system.

In most preferred embodiment, custom system 226 is the audio systems that comprised that amplifier circuit and volume are regulated.It can be the potentiometer device that volume is regulated, but recommends to use the control button of pulse-width modulation digital regulated.Audio system also can comprise and is used for postemphasising of demodulation FM signal processing.The level of Chu Liing as required, audio system both can be that monophony also can be stereo.And then add the sound that stereo analog circuit just can produce stereo imitating sound from transmission of mono.Audio system has been exported to the Headphone device of Fig. 9 device 228 effects.Headphone device generally is in light weight, the earphone that cost is low, resembling in being commonly used in film and analogue in-flight.But headset type is also unrestricted, and other transducer also can use, and for example comprises loud speaker, and promptly can have not to have booster amplifier yet.

In one embodiment, program source 204 and coded system 206 can combine with transmission time compression or expanding unit, so that source signal is pressed the transmission of their time.In this mode, the video transmission of a length-specific be not with as 120 minutes but with 12 minutes broadcasting, use 10: 1 compression ratio.And, in prior art, be suitable for, higher transfer rate can be arranged.Have under the situation of this transmitting device, in individual receiver unit 220, just needing the receiving system that matches.

In one embodiment, receiver 222 can comprise a tape recording equipment, and the transmission signals on it after recording compressed (as 12 minutes) is also realized reset in real time (above 120 minutes) thus.

In a further embodiment of system 200, program source 204 can be formed on the medium, for example with computer storage common or that need cost to be sold, and microgroove record or cassette tape, but need the time assignment to reset.As above-mentioned, information signal is encoded together with the timing selling signal, need suitable decoding with this in individual receiver unit 220, this just can increase a media player that is used that is used for computer storage, microgroove record or cassette tape.

Figure 10 expresses may the installing of signal transmission of a kind of Fig. 9 of being used for.4 audio frequency incoming line 242-245 are added on the multiple modulator 248, are used for each tone frequency channel wire of switch input 242-245 and give a radio frequency emissions machine 250 of corresponding number, and its each transmitter person is linked on the common issue antenna 254.Each reflector 250 all is arranged to launch in order to carrier frequency independently, and each that makes 4 program source thus at any time all is effective.Multiplexer 248 is controlled by an on-off controller 258 of having imported code 256.Code 256 is used for each of 4 circuits input 242-245 in the middle of 4 transmitters of switch continuously 250 in pseudorandom mode.

Figure 11 represents a kind of layout of code 256, and it is arranged framing 282 with the interval that preferably had a second.Wherein every frame 282 is preferably in 8192H2 and is arranged to 16 tone pulses groups, and it comprises a beginning that has the reference pulse 280 of predetermined pulse width and be disposed in every frame 282.Following reference pulse 280 is 15 pulses 284,285,286 ..., each changes the actual coding data of its pulsewidth representative code 256.In each transmitter 250 emission, every frame 282 of code signal 256 is stored in the on-off controller 258.

As what in Figure 10, seen, transmit by 4 radio receivers 262 that radio frequency reception antenna 260 receives and offers that are arranged in the individual receiver unit 220.Receiver 262 is arranged to match with each transmitter 250 and merges the signal that demodulation is therefrom launched.These signals offer demultiplexer 286.

Code 256 is arranged in the frame 282 so that the code in arbitrary frame is launched, and receives for individual receiver unit, and by demultiplexer 268 decodings and import in the on-off controller 270, it is used for the Signal Separation of control signal separator 268 at this.In this mode, the sign indicating number representative of being launched in arbitrary frame is used for the decoding code of next or a series of frame.

With the best instrument of distribution system 200 is to utilize the arrowband FM radio frequency emissions that has the emission maximum field intensity of 43dB μ v/m in the scope from 3 meters on antenna.It is desirable that this device is proved to be the instrument that is used for the railcar.

Figure 12 expresses the best instrument of the individual receiver unit of this application, and wherein individual receiver unit 300 comprises the antenna 302 that connects with RF amplifier 304, and amplifier 304 is supplied with frequency mixer 306 again.With the inverted configuration shown in Figure 10 with 4 radio receivers that separate 262, on behalf of a kind of uncle of reception, device shown in Figure 12 jump the more cost-efficient method of signal, and wherein local oscillator work is so that provide the mixing that is enough to 4 carrier frequencies of difference demodulation.

Frequency mixer 306 is exported to the IF amplifier 308 that comprises several series-connected stages, and having an overall gain is enough to produce the restriction of output IF signal so that produce the lowest operational level of RF output.Amplifying stage is designed to little by little to limit to guarantee having consistent characteristic with the whole signals that reach desired maximum level.

IF amplifier 308 is exported to FM wave detector 310, and it is the standard quadrature demodulator, has LC tuning circuit phase shifter and balanced transistor phase detector.Insert the RC filter and filter the IF composition at twice.

FM wave detector output notch filter 312, it is the third level low pass filter that has transmission 0 at 8192Hz, the subcarrier of code signal is used for decoding.Filter has prevented the interference that can hear that code produces.

Notch filter 312 outputs to volume and regulates on 314, and it can be traditional potentiometer, but preferably in system, use microprocessor under regulating between signal high-frequency pulsed width modulation frequently.This can and fall key and regulate volume by the liter on the key plate 336.

Volume is regulated 314 and is exported to de-emphasis unit 316 it comprises that simple R C time constant regulates 3 and 4 radio-frequency components that produced with the frequency preemphasis and the elimination simultaneously of proofreading and correct institute's audio signals by pulse modulated volume.

De-emphasis unit 312 is exported to stereo simulator 318, is used to postpone the audio signal that 0.5 microsecond repeats to import.Inhibit signal adds primary signal then producing an audio channel signal, and deducts from primary signal to produce another audio signal.Obtain to postpone by the clock switch capacitor technology.

Simulator 318 is exported to a pair of audio frequency amplifier 320, and it has the bandwidth of about 6KHz and exports to cheap 32 ohm of headphone units 322.

RF amplifier 304 is by RF tuning circuit feed, and it is a microprocessor control analog switch, can carry out the Dynamic Selection of the suitable antenna loading condenser that will finish when chatter, perhaps can carry out the static state selection when the equipment chatter.

By the frequency synthesizer 326 supply frequency mixers 306 that comprised by the local oscillation signal that a pair of phase-locked loop circuit took place of the common reference frequency that has 16384Hz, control the apportionment ratio of each ring by microprocessor 334.Utilize two rings to replace a use that the time is all stablized any ring.When chatter, the interval between the chatter preferably 1 second 1/16.It also is the frequency sensitive type that phase detector in each ring belongs to, and produces phase-locked in the scope of any chatter.Base 328 comprises and uses the 32768Hz Colpitts oscillator of general wristwatch crystal as benchmark during the crystal that provided.Provide distributor to allow to be used to spread all over other timing signal of receiver unit 300.

FM wave detector 310 outputs to tone wave detector 330, and it comprises and the synchronous Phase Tracking wave detector of 8192Hz clock signal that has the quadrature drive phase place.This just provides him high selectivity, response and low-cost fast.Provide equivalent band-pass response by two low pass RC ladder-type filters that act on detection output.

RF amplifier 304 utilizes the same antenna 302 both to can be used as receiver operation under two modes and also can be used as transmitter work.As shown in figure 13, an independent transistor 350 can be finished every kind of task and need not change its circuit connection.When receiving, transistor 350 is operated in its base stage mode, and wherein, the signal that is offered expelling plate by antenna 302 is exaggerated and exports to the RF transformer 351 that connects with collector electrode.When emission, transistor 350 is operated in its collector electrode mode, and wherein the signal that offers base stage by microprocessor control switch driver 350 is exaggerated and exports to antenna 302 from emitter.In radiation pattern, do not utilize collector electrode output.Best, switch driver 352 provides a static Low ESR AC signal road warp so that the substrate ground connection of signal reception period at transistor 350, so that the optimum performance of amplifier 302 to be provided.The layout that resistor 353-356 is provided is to guarantee the suitable bias voltage of transistor 350 in each mode.Capacitor 357 can be used to use for tuned amplifier 305 in receive mode, and when strengthening its collector electrode device to be different from the frequency emission that connects extendible.

Battery-powered and make 300 work of individual receiver unit, and comprise battery monitor 232, to detect low battery condition and the indication that offers microprocessor 334, the microprocessor of being arranged 334 sends the alarm signal of the rule of injecting single amount regulating circuit 314, thereby this weak signal can be heard by the user of the earphone 322 of vigilance low battery condition is adjusted.

Under the adjusting of choosing of the instant channel on the key plate 336 or volume change key, 334 pairs of required synthesizers of microprocessor and chronometric data are calculated and are given each unit 324,326 regulating data.

Key plate 336 is included in the elastic switch device of band contact plate on the printed circuit board (PCB).This plate comprises 4 channel buttons, a shutdown button and two volume adjusting knobs, and the startup of any channel key is all automatically connected receiver.

What be coupled to each other with microprocessor 334 is ROM device 338, and it is inconjunction with other hard wire logic, and ROM338 is storing the foundation code that is used to determine not have the receiver groundwork under the code signal.

Provide RAM340 to store safest sensitive decoding code, the time that replaces greater than needs one simple battery if main battery is removed (providing of short duration electric energy to store by the capacitor that is linked on the RAM340), then it is non-permanent storage.

Non-volatile (NV) RAM342 is provided and keeps its data by the silver oxide reserve battery that when receiver is made, embeds.In the inspection period of manufacturer, code enters WV RAM342 reliably, communicates to allow to selling machine 202 together.Effective time, the counting of unit also was stored in NVR and 342.

Precautionary measures are fabricated in the receiver 330 to set up safety lock in microprocessor 334, are read out or damage with the data in the reliable zone that prevents RAM340 and NV RAM342.Make safety lock by set again by the data that from memory, clear all at the same time.

Memory is according to such principle establishment: because it can only exist the data of then impermanent storage not have the danger of reading without permission extremely with the form of accurate instruction.The ROM data are defined in the figure that is coupled to each other on the silicon, thereby can read with microscope, though very difficult.

The physical structure of receiver 300 preferably constitutes like this: do not damaging circuit and do not disconnecting the situation lower casing of advocating peace auxilliary battery and not destroying all sensitive data simultaneously and can not open.Best, all memories all become an integral body with microprocessor, prevent from thus directly to enter wherein.

Only described some embodiments of the invention above, do not departed under the scope situation of the present invention, various configurations are conspicuous to those skilled in the art person.For example, inductive coupled although some embodiment have used, also can use other the remote coupled mode as the capacitive coupling.

And then, described transmission of mono in certain embodiments, but the modulation and demodulation The Application of Technology of standard also can be used for the stereo source content regeneration.

The present invention can be used for providing the application of the signal distribution system that desired signal sells.

Claims (78)

1, a kind of signal distribution system comprises:

-feedway is used to provide the signal that gets from a signal source; With

At least one receiver unit is suitable for receiving described signal, and described receiver unit comprises:

The storage of-time quantum is used to store a time cell value that gets from the time quantum distribution system;

Control device, if be used for reading time cell value and this value greater than a scheduled volume, the reception of described signal can be carried out, means for correcting is used to change chronomere's value.

2, system according to claim 1, wherein said control device comprises that one is arranged to the periodically clock apparatus of transformation period cell value.

3, system according to claim 2, wherein said clock apparatus can be realized by the reception of the described signal of described receiver unit.

4, system according to claim 2, wherein said clock apparatus by applying electric energy so that described receiver unit work realize.

5, system according to claim 2, wherein said feedway forms provides time-varying signal, and when being received by described receiver unit, described signal is provided for described means for correcting to change the time quantum value.

6, system according to claim 1, wherein said signal comprises a programme information signal of selecting from the group of being made up of audio signal, vision signal and data-signal.

7, system according to claim 6, wherein said signal further comprises a time variable signal, when being received by described receiver unit, described signal is provided for described means for correcting to change the time quantum value.

8, system according to claim 7, wherein said programme information signal and described time-varying signal are provided by described feedway and described receiver unit independently respectively and receive.

9, system according to claim 7, wherein said programme information signal and described time-varying signal are combined and are used as a single signal and provide, and described receiver unit comprises that a receiver apparatus is used for isolating described programme information signal and described time-varying signal from described single signal.

10, system according to claim 1, wherein said variation is the increase or the minimizing of time quantum value.

11, as the system of claim 10, the base unit of or predetermined a plurality of time quantum values is represented in wherein said variation.

12, system as claimed in claim 1, wherein said reception can realize so that a useful output to be provided from described receiver unit work.

13, as the system of claim 12, wherein said useful output comprises that a control signal is suitable for controlling the equipment that connects with described receiver unit.

14, as the system of claim 12, wherein said useful output comprises the described signal of exporting to comrade's generating apparatus.

15, as the system of claim 14, wherein said signal comprises that an audio signal and described regenerating unit comprise-the electro-acoustic converter device.

16, as the system of claim 15, wherein said electro-acoustic converter device comprises an earphone transducer.

17, as the system of claim 16, wherein said receiver unit forms the part of a Headphone device that comprises described earphone transducer.

18, as the system of claim 14, wherein said signal comprises that a vision signal and described regenerating unit comprise a video display unit.

19, as the system of claim 13, wherein said signal comprise a data-signal and described equipment comprise-for handle the computer installation that the data transmit are arranged in described data-signal.

20, system as claimed in claim 1, wherein said feedway is included in the physical communication between described source and the described receiver unit.

21, as the system of claim 20, wherein said physical communication is selected from the group that electrical conductor arrangement and fiber device are formed.

22, system as claimed in claim 1, wherein said feedway is included in the non-physical communication between described source and the described receiver unit.

23, as the system of claim 22, wherein said non-physical communication is by from infrared, electric induction, and magnetic induction, the emission of selecting in the group that near field radio frequency emissions machine and far field radio frequency emissions are formed produces.

24, system as claimed in claim 1, wherein said source and described feedway are to select from the group of following composition:

1. video tape and player;

2. microgroove record and microgroove record machine;

3. cassette tape and cassette player;

4. digital audio tape and digital audio tape cassette player;

5. computer storage and computer installation;

6. transmit and transmit receiver.

25, as the system of claim 20 or 22, wherein said feedway comprises a system, around from aircraft, and railcar, the structure of selecting in the group that many passenger car and building are formed and launch described signal.

26, as the system of claim 20 or 22, wherein said feedway comprises a transmission system, distributes in the time of the described signal of a plurality of described receiver units it is arranged to from described source to a plurality of zoness of different.

27, as the system of claim 26, when depending on claim 20, wherein said transmission system is from by selecting the group that switched telephone and non-switching network are formed publicly.

28, as the system of claim 26, when depending on claim 22, wherein said transmission system is to select from the group of being made up of radio broadcasting net and subregion telephone network.

29, system as claimed in claim 1, wherein said source and described feedway form the part of described time quantum distribution system, described time quantum distribution system comprises the socket that is used for described receiver unit arrangement, described source comprises the currency receiving system that is used to receive the financial credit that the user by described system provides, described currency receiving system determines corresponding time quantum value according to described credit, described time quantum value is exported by feedway on the described socket of described time quantum value to the communication of described receiver unit being used for, described means for correcting detects the reception of described time quantum value and the described time quantum value that receives from described distribution system is added on chronomere's value the described time quantum memory, and keeps added value to be worth as the chronomere after the correction in described memory.

30, as the system of claim 29, its described receiver unit further comprises a transmitter part and described time quantum distribution system comprises the receiver portion that matches, and makes thus and can realize the two-way communication contact between described receiver unit and the described time quantum distribution system.

31, as the system of claim 30, wherein said transmitter part forms the part of a transceiver machine, and it promptly can receive described signal also can be transmitted to described feedway.

32, as the system of claim 31, wherein said transceiver machine comprises a transistor, this transistor makes its emitter connect with the emission/acceptance division of described receiver unit, its collector electrode connects with the emission input of described transceiver machine, and its base stage is imported connection with the emission of described transceiver machine, and wherein when being used to receive, described transistor is worked in grounded base mode, and when being used to launch, described transistor is worked in the mode of common collector.

33, as the system of claim 32, wherein said emission/acceptance division comprises a radio frequency antenna, described reception output comprises a tuning radio frequency transformer, and described emission input comprises that a switch driver provides low impedance path to form when described transistor uses as reception in described base stage.

34, as the system of claim 29, wherein said time quantum distribution system is formed an automatic married couple cargo aircraft, distributes described receiver unit according to suitable gold every the reception of credit.

35, as the system of claim 29, wherein said gold comprises the currency of putting into described currency receiving system every credit.

36, as the system of claim 29, wherein said currency receiving system comprises the expense that the accounts of the credit dog of a credit dog reading device are charged to.

37, system as claimed in claim 1, further comprise the code device that inserts between described source and the described feedway being used for, and described receiver unit comprises that one has the decoding device that matches of decoding key so that realize the regeneration of described signal to described signal encoding.

38, as the system of claim 31, wherein said code device comprises a code generator and a variable connector, described feedway comprises that many communication paths give described receiver unit, wherein said code generator according to described switch to connect described source to one of described path.

39, as the system of claim 32, wherein said code generator is used for the described signal of pseudo-random fashion switch by each described path.

40, as the system of claim 39, wherein said code generator output comprises the code sequence of a reference element and many coding compositions.

41, as the system of claim 40, wherein said composition is arranged in the frame of the predetermined interval that begins from described reference element.

42, as the system of claim 41, wherein said coded sequence is used to be transmitted to described receiver unit with described signal combination, the code sequence that is used for arbitrary frame is thus represented its sequence by the described path that described switch selection is used for subsequent frame, make described receiver unit can receive the combined transmit signal that is used for a described frame thus, same thing is decoded to extract described coded sequence and to use described coded sequence described receiver unit is connected to the corresponding communication path that is used for described subsequent frame.

43, as the system of claim 42, wherein said subsequent frame is the next one frame that continues.

44, system as claimed in claim 1, wherein said time quantum distribution system comprises that an automatic vending machine reception of using according to the financial signal that is provided by the user of system is provided distributes the fixed storage apparatus that comprises described time quantum value.

45, as the system of claim 44, wherein said storage arrangement comprises that one can insert the module of described receiver unit to form at least a portion of described time quantum memory.

46, a kind of receiver unit is suitable for using together as each described system in the above-mentioned claim.

47, a kind of time quantum distribution system is suitable for together using with each described system among the claim 1-45.

48, a kind of secure transmission system, comprise an emitter and a receiving system, make at least one signal send described receiving system to by a plurality of communication paths between the described device from described emitter, first switching device is arranged in and is used in the described emitter coming described signal between the described path of switch according to the pseudorandom on off sequence, and the second switch device is arranged in and is used in the described receiving system according to described sequence described path being connected to an output.

49, as the system of claim 48, wherein said first switching device comprises the on-off controller that a same code is imported together, and described controller is programmed into described code in the described sequence with a reference element and many code compositions.

50, as the system of claim 49, wherein said composition is disposed in the frame of each predetermined interval that is begun by described reference element, with the code composition of the every frame that together changes with described code.

51, as the system of claim 50, wherein said sequence is used to be transferred to described receiving system with described signal is combined, the described sequence that is used for arbitrary frame thus is that a subsequent frame selects described path to represent its sequence by described first switching device, the combined transmit signal that described receiver apparatus can be received be used for a described frame, phase jljl is advanced decoding extracting described sequence, and use described sequence so that described second switch device work and described output is connected to the respective paths that is used for described subsequent frame.

52, as the system of claim 51, wherein said subsequent frame is immediately following the frame behind a described frame.

53, a kind of transceiver machine equipment, comprise a transistor, it has the first terminal and is connected to a two-way emission/acceptance division, second terminal is connected to one and receives output, be connected to an emission input with the 3rd terminal, wherein said transistor can be with the first mode work so that adopt received signal and phase jljl sent to described second terminal on described the first terminal, it also can be with the second mode work so that employing transmits and phase jljl is sent to described the first terminal on described the 3rd end.

54, as the transceiver machine equipment of claim 53, wherein said transistor is a bipolar transistor, and it connects its emitter is described the first terminal, and it is described the 3rd terminal that its collector electrode connects.

55, as the transceiver machine equipment of claim 54, wherein said first mode is a common base mode and described second mode is the common collector mode.

56, as the transceiver machine equipment of claim 55, further comprise: the driver that connects with described base stage is used for providing described to it and transmits, described driver when described transistor with described its utmost point mode work interval scale one static Low ESR signal road altogether.

57, as the transceiver machine equipment of claim 53, wherein said two-way portion comprises a radio frequency antenna, and described reception output comprises a tuned radio frequency transformer.

58, selling signal distribution system during a kind of the liter, comprise: a source and at least one acceptor unit, be suitable for receiving one or more information signals and the output of timing selling signal from described source, described acceptor unit comprises a control device, be suitable for keeping by the described record of the time quantum value of selling signal modulation when assorted, thereby wherein said control device is suitable for and use described time quantum value to make described acceptor unit work propose the useful output of described acceptor unit with the described information signal of reception in the scheduled period of time.

59, as the system of claim 58, wherein the timing selling signal is whole with described information signal.

60, as the system of claim 59, wherein information signal comprises the time quantum signal of one-period property, prevents to carry out the reception of described information signal thereby be suitable for the transformation period cell value so that described receiver can not be worked after the described scheduled period of time.

61, as the system of claim 59, wherein the source both can be a radio frequency (RF) transmitter, also can be rigid line allocate communications system, and acceptor unit comprises a RF receiver or directly is connected to the device of distribution system.

62, a kind of Headphone device comprises:

Regenerating unit is used for the audio program signal of an emission is regenerated as a voice signal; With

Control device, the quantity that the unit is sold in the timing that is used for selecting according to the user programs, and the same periodic timing selling signal in described unit compares, and described control device can not be worked described regenerating unit when the time interval that is equivalent to the use of described unit has been used up so that the use by described Headphone device makes.

63, as the Headphone device of claim 62, wherein audio program signal both can be used as the radio frequency signals emission with magnetic induction, also can distribute the rigid line system transmissions by one.

64, a kind of metered Audio Distribution System comprises:

One Headphone device according to claim 62; With

The transmitting device of being arranged is to transmit at least one described audio program signal.

65, as the system of claim 64, wherein the timing selling signal is received by described Headphone device, as with described audio program signal being whole or additional signal on it.

66, as the system of claim 64, wherein the timing selling signal is in the inner clock signal that produces of described control device.

67, as the system of claim 64, the reception of wherein said timing selling signal is used to reduce described unit till the zero location value arrives, or is used to increase a counting and compares with the number that programs of described unit being used for.

68, as the system of claim 64, wherein Headphone device comprises that a sound pick up equipment is suitable for energy that the described transmitting device of receiver launched and converting electric energy to be used for the power supply of described regenerating unit and described control device.

69, a kind of Headphone device comprises that the Electricity Federation lays one's hand on the device shell, the transducer of the audio signal that receives on described coupling of being used to regenerate and the read-only storage that is arranged in the described shell and is suitable for making described transducer can and can not carry out described signal regeneration.

70, a kind of automatic vending machine is suitable for the program of rearranging that the unit is sold in the Headphone device of the Headphone device of claim 62 or claim 69 timing.

71, as the timing selling signal distribution system in the claim 58, wherein the source is suitable for being entered and being controlled by the user of acceptor unit, the source also be included on the recording medium with described timing selling signal combine record in advance information and be used to read a side gate of an imperial palace and send the information of described record in advance and the device that the timing selling signal is given described acceptor unit.

72, as the system of claim 71, wherein said recording medium is permanent or semipermanent.

73, as the system of claim 71, wherein information and timing selling signal are encoded and the acceptor unit device is used for equipment to described signal decoding.

74, as the system of claim 71, wherein recording medium can be recording or video tape or dish, computer data or program disks or solid-state memory or analog.

75, as the system of claim 74, wherein recording medium is to pay, and one of rents or is obtained by any suitable distribution system by the user.

76, as the system of claim 58, wherein the source comprises the time span that is used to compress or expand from the described signal allocation in described source, and acceptor unit comprises that the device that matches is used to expand or compress the time span of received signal.

77, as the system of claim 76, wherein expansion or compression set comprise the memory that is used for information and the storage of timing selling signal, and the work of timing selling signal is with real-time control time cell value.

78, as the system of claim 77, wherein the timing signal of information is being encoded of numeral.

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