CN1311570A - Radio network equipment instruction channel - Google Patents
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- CN1311570A CN1311570A CN00137322A CN00137322A CN1311570A CN 1311570 A CN1311570 A CN 1311570A CN 00137322 A CN00137322 A CN 00137322A CN 00137322 A CN00137322 A CN 00137322A CN 1311570 A CN1311570 A CN 1311570A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
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Abstract
A bilateral system performs command interpretation and execution, transmitting information from host computer to the network apparatus, or from network to the host computer or performs local reception from different information sources by network apparatus. Command channel control system mates to a forward channel system (wireless transmission image, voice and data by external bus from network) and a backward channel system (wireless transmission command signal from host computer to the network apparatus) to work together. Command channel control system composes and divides signal at the same time, allowing the signal to be transmitted from a single host computer to multi-network apparatus or from multi-host computer to a single network so as to broadcast, and vice versa.
Description
The present invention relates to digital imaging equipment, is the wireless camera with main-machine communication specifically.
The development of the communications industry concentrates on catches and stores quiet and the ability aspect digital video image.On the other hand, communication revolution mainly concentrates on and can transmit and receive composite image simultaneously, the increase of total number of the communicator of audio frequency and data-signal and the enhancing of availability.Yi Fangmian progress mainly concentrates on the difference realization that is used for wireless connections in addition.For example, digital image, audio frequency and data are operated on computers usually and are transmitted by network or Internet.Video conference is an Another application, and the digital image voice and data is side by side transmitted from another ground, station of standing and receives.
Fig. 1 has described the general wireless system technology that is used for from the prior art of 10 to TVs of a video camera or 12 while of a video tape recorder transmission of digital pictures and sounds.In a such system, pictures and sounds is to use the analog, base-band television signal standard of a standard to transmit for example NTSC or PAL standard.A structure like this is used for safety system at large, and for example, at U.S. Patent number 5,448,290 have shown a such system.This wireless system is provided at the two-way connection between video camera and TV or the video tape recorder by synthetic popular outer member (off-the-shelf external components).TV signal is transferred to monitor by video camera, and control signal is transferred to video camera by monitor.When detection signal produced, control system provided the function that signal source can be converted to System Monitor.Such system based on NTSC relies on video camera and sends the signal of unprocessed NTSC form to TV or video tape recorder.TV or video tape recorder (main frame) in a such system do not need special customization, as long as video camera sends correct NTSC format signal to TV or video tape recorder main frame, any TV or video tape recorder can both normally use.
Therefore the PAL/NTSC form is a general standard, and it is that the low price product of PAL/NTSC form can use that many being used for digital data coding just arranged.This makes that the data source of different forms can be converted to the PAL/NTSC form is used for broadcasting.For example, IBM microelectronics NTSC/PAL digital video code chip just can be converted to the digital component video base-band television signal of standard with the color modulation subcarrier.
Fig. 2 has described a digital system that is used for image and sound are sent to from a digital camera prior art on the external bus that is connected to a PC main frame.In a such system, light receives and submits to an array, for example a CMOS or a charge coupling device sensor array by a camera lens.Detection signal is processed and convert digital form to, forwards a digital image manipulation treatment circuit then to, can be a programmed processor or an application-specific integrated circuit (ASIC).This treatment circuit offers computer 24 by bus 22 with image and speech data.In a such system, video camera 20 comprises camera lens and treatment circuit.This processing procedure comprises video data compression, to transmit on the finite bandwidth of bus.Except that compression, the preliminary treatment of video data can limit the data volume of needs compression.In addition, before compression, can carry out the processing of some colours, with the loss of the color quality avoiding after main frame carries out compression and decompression, causing.The example of a system like this is the super video camera of Logitech R QuickCam R that is connected on a general universal serial bus (USB) or a parallel port.
Can avoid the mooring (Tethered) when information rate is low to connect by using radio digital communication.Different manufacturers produces Wireless Keyboard and mouse based on infrared ray or digital radio tranmission techniques, and their respective receiver.Yet, to compare with the needed message transmission rate of visual ancillary equipment with being used for audio frequency, it is very low that these devices transmit bandwidth and the information rate used.
Non-mooring from the network peripheral to the main frame connects the loss that disadvantageous one side is a transmitted in both directions, and vice versa.Most wireless network ancillary equipment only provides the data from the network equipment to the main frame to transmit, and the method that is sent command signal by main frame to the network equipment is not provided.
For making great efforts to enlarge the scope that short-distance wireless connects, Bluetooth technology association is constantly developing bluetooth, and it is the communication protocol standard that is used for wireless data and Speech Communication.Especially for cell phone, laptop computer, personal digital assistant, facsimile machine, keyboard, the puppy parc of joystick and headphone.Bluetooth operates on the ISM radio base band of 2.4GHz with the total information rate of 1Mb/s.In case it is full-fledged, Bluetooth specification will finally be realized on mainboard.
The invention provides one and send control signals to transmitter from main frame by bus, and by being wirelessly transmitted to explanation and the execution that the network equipment (for example video camera) carries out order, and being sent to wireless receiver and being sent to the bilateral system that main frame carries out command interpretation and execution from the network equipment by bus by wireless transmission.Can be from the command signal of the network equipment from the data flow, or at image, audio frequency, or carrier signal, or in the scheme of stem or any grouping.Except that receiving the control signal from main frame, can also be by the network equipment from different signal sources, for example beacon, environment and/or state change transducer or this locality (local) the stereognosis input equipment etc. that send the remote control of infrared ray order, a transmission radiofrequency signal receive control signal locally.Behind this command channel control system and forward channel and one to the channel system associated working.The work of forward channel refers to from the network equipment, video camera for example, and to the image that the mooring external bus carries out, the wireless transmission of voice and data, the work to channel then refers to from the wireless transmission of the command signal of host-to-network equipment.
The benefit that image broadcasting and mooring number bus is synthetic be can make a plurality of low-cost video cameras can with a main-machine communication, and can place a plurality of image processing circuits at receiver rather than on video camera.To the broadcasting of mooring receiver, the mooring receiver arrives intermediate frequency with conversion of signals to video camera in higher frequency.These command channels operate in segmentation on this structure (piggy back) and allow control signal to be sent to the network equipment by the mooring receiver from main frame, and vice versa.
The command channel system allows to several network equipments or from several main frames a network equipment to be broadcasted control signal from a main frame.Similarly, the command channel system allows to broadcast control signal from a plurality of network equipments to individual host, or from single network equipment to several host broadcast control signals.Correspondingly, the command channel system comprises that simultaneously multiplexer and demultiplexer are to synthesize several signals and separate.In a radio multimedium network, have single or multiple equipment or single or multiple main frame, the realization to channel after the controlled in wireless has several benefits.
The first, the back allows the user that remote peripheral device is sent instruction to channel to carry out switch control, with extending battery life or be used for maintaining secrecy.
The second, command channel allows the closed circuit feedback of setup parameter, tuning or emending frequency.When user installation or adjust remote equipment, video camera for example, and also this characteristic is of great use when not considering the demonstration of main frame.In this is realized, signal produce by host receiver and by the back to Channel Transmission to equipment.During installing and being provided with, the data of device parameter are to host receiver by device broadcasts.During the setting, the apparatus settings parameter is with respect to the corresponding Change of Class that is monitored by main frame, main frame with regard to corresponding modify after to the transmission frequency of channel.Algorithm based on imaging software or hardware is used on main frame or equipment to aim at corresponding apparatus and host parameter.When the data optimum Match, the back obtains suitable setting to the channel radio signal, and the user is also correspondingly announced.
The 3rd, in a Wireless Communication Equipment is used, image, audio frequency and data or command signal can receive by the receiver of non-network special permission.Command channel allows at random the in real time or predetermined amplitude of transmission between main frame and equipment in real time, and frequency or phase modulation running parameter are used for synchronously.Same command channel can be used for managing the transmission of password, scramble or encryption key.This characteristic can make up to channel operation or any device transmission channel or any other by the back and realize.
The 4th, command channel allows user's transmitting control commands to a network equipment.Control command can initialization in main frame or other network equipment.In this case, the network equipment comprises infrared ray (IR) detector or touch input device.Main frame can be handled, and carries out, and generation or relay commands are used for being carried out by the network equipment of appointment.The example of this type of order comprises: electric power on/off, and display format is set, the location, channel is selected, the volume adjustment, pattern moves up and down, tilts, convergent-divergent, dialing is answered, shows, the audio frequency ON/OFF, the video ON/OFF, the captions ON/OFF connects, disconnects, and other.
The 5th, command channel allows the concrete network equipment selectively to operate according to their the local state or the change of ambient condition.The example involving vibrations of environment change, motion, noise, variations in temperature or flue dust.The example that state changes comprises the removal of battery life or sender unit cap.In case environment or state change the generation of sensor to particular event, the notice of incident just is transferred to the main frame that can handle and manage this signal.Then, main frame will produce appropriate control signals, and transfer them to destination network device by controlling the back to channel.Except that the order of main frame relaying was passed through in response, the network equipment can also receive and respond the order that this locality provides.The signal source of the order of these this locality can be remote control, touch input device or the beacon that sends infrared ray (IR) signal.Beacon signal can offer the reception network equipment by the signal source self an of this locality, also can be by the public network of communicating by letter with the local network of equipment and main frame from the beacon of a local network scope outside by relaying.
The 6th, the control back allows the network equipment in many equipment or multi-host network and other main frames are carried out specific identification to channel.In the wireless network of equipment and main frame more than, specific identification is important.Can by to unique back of each host assignment to the channel band width and also realize by distributing to the unique frequency bandwidth of each equipment.Network host uses look-up table or database then, selects and control single destination network device.Same, the network equipment also can identify, and selection and transmission information are given destination host or other main frame.Specific identification also can realize by embed unique identification information in channel or forward channel signal in the back.
In order further to understand characteristic of the present invention and benefit, can be with reference to description below in conjunction with accompanying drawing.
Fig. 1 be one from the video camera to the TV or the wireless system block diagram of video tape recorder transmitted image and sound.
Fig. 2 is a block diagram from video camera transmitted image and sound to the mooring system of the prior art of personal computer main frame.
Fig. 3 is the present invention is used for carrying out wireless transmission and receives image, voice and data and transmit the embodiment of control signal from the receiver to the video camera from the video camera to the receiving element a block diagram.
Fig. 4 is the block diagram of wireless transmission camera parts embodiment among Fig. 3.
Fig. 5 is the block diagram of wireless receiver unit among Fig. 3.
Fig. 6 is the block diagram of digital signal processor among Fig. 5 (DSP) embodiment.
Because the characteristic of two-way transmission and reception is closely-related between ancillary equipment and main frame, describe the operation of forward direction and back below in detail to channel.The work of forward channel means and transmit image, voice and data (comprising control signal) from ancillary equipment to the main frame, then means to passage and transmit control signal from the main frame to ancillary equipment.
Fig. 3 be wireless system from video camera 30 to receiver unit 40 block diagrams that transmit and receive image, voice and data, according to the embodiment of the forward channel operation related with the present invention, receiver unit 40 is tethered in main frame 52 by bus 50.Fig. 3 also shown and afterwards transmitted control signal to the transmitter receiver unit 40 142 from main frame 52 by bus 50 to channel system, and by being wirelessly transmitted to the embodiment of video camera 30.This system comprises a broadcasting equipment or a camera unit 30 and a receiver unit 40.Camera unit 30 receives the image of input, and audio frequency and data become analog format (or the maintenance analog format is constant) then they to be sent to receiver unit their conversion of signals separately.Receiver unit 40 receives the signal of broadcasting, convert them to number format, do necessary processing then and make them be fit to the bandwidth of communication bus, except that video camera 30, this system can comprise second shooting 30a, with supplementary equipment therefore facsimile machine 30b for example, a photocopier 30c, a scanner 30d, or other network peripherals phone for example, visual telephone, videoconference and video conference device.
As can be seen from Figure 3, the embodiment of a camera unit comprises three subelements.First subelement is finished the function of reading video image, and first subelement is finished transfer function, and the 3rd subelement is receiver.First subelement can comprise a microphone and a command receiver simultaneously, and a control circuit that produces transmitting control data.Control circuit is the processing execution command signal also.These three subelements can or can be integrated at the IC regime in the chip in the sub-component mode in three different chips, and the latter can be a dedicated IC chip (ASIC).
Shown in Fig. 3 is main subelement among receiver unit 40 embodiment.44, one digital signal processors of an antenna 42, one analog to digital converters of 41, one receivers (ADC) (DSP) 46 are arranged here, and a BIU 48.Antenna 41 receives the broadcast singal of analog format from camera unit 30.Broadcast singal passes to receiver 42 and is converted to intermediate frequency and be demodulated into independently image, audio frequency and Data Base band signal respectively to frequency conversion down then.Base-band analog signal converts digital signal to by analog to digital converter 44, transmit then digital signal to digital signal processor 46 go to carry out data compression, shearing, convergent-divergent, color are handled and other functions in one or more, and digital filtering.After handling, digital signal is transmitted to bus interface 48.Bus interface 48 is from digital signal processor 46 receiving digital signals and do the bandwidth that suitable processing makes its suitable communication bus 50.The signal that bus 50 is handled digital signal processor 46 sends primary processor 52 to, the data-signal of primary processor 52 response transmission, and/or show this vision signal and/or the audio signal of reappearing transmission.
In an example, the broadcasting frequency that is used for video camera 30 is 65.5 megahertzes (channels 3), and other frequencies (channel 1,2 and 4) are used to another broadcasting equipment.Transmitter 34 comprises a centre frequency frequency mixer that changes between 907 megahertzes and 925 megahertzes.Receiver 42 is the intermediate frequency of 45 megahertzes with conversion of signals.
In an external receiver embodiment, bus 50 is general universal serial bus (USB), or IEEE 1394 buses (for example trade mark Fire Wire@ bus of Macintosh) or a parallel port.In addition, in an embedded receiver embodiment, bus is an internal integrated circuit (II C) bus.
For example comprise typical processor among the different embodiment of main frame 52: personal computer (PC), TV set-top box (STB), network computer, work station, server, router, switch, hub, bridge, printer, photocopier, scanner, facsimile machine, modulator-demodulator, network appliance, game station or anyly on network, show, further handle, watch hard copy or the equipment of distribution image, audio frequency and data on network.The present invention can receive, handle or relay simply the equipment of image rather than from the video camera receiving broadcast signal from scanner, photocopier, facsimile machine, light image processor or any other.
The receiver unit 40 of Fig. 3 is one and receives the receiver of image, voice and data from ancillary equipment 30,30a-d, and it also is from main frame 52 equipment 30 to the periphery, the transmitter that 30a-d transmits control signal by bus 50.As shown in Figure 3, receiver unit 40 comprises and transmits a control signal to ancillary equipment 30, a transmitter 142 and an antenna 141 of 30a-d.In an embodiment of instruction channel, the control signal that is provided by main frame 52 is transferred to external receiver unit 40 by bus 50.Control signal is sent to transmitter 142 and is converted into the format signal that can broadcast, and signal is by transmitting antenna 141 emissions.Concrete control signal example comprises: on electric power on/off, display format setting, framing signal, channel selection, the volume/down, pattern, move up and down, inclination, convergent-divergent, dialing, calling, answer, demonstration, audio frequency ON/OFF, data ON/OFF, captions ON/OFF, connection and disconnection.The example of concrete display format signal comprises: full frame, picture-in-picture (PIP), public intermediate form (CIF), four cellular CIF (QCIF), signal source pattern of the input (SIF), four minutes SIF (QSIF), VGA, PAL and NTSC.The broadcasting control signal is received by the ancillary equipment receiver, and for example the receiver 134 of camera unit 30 receives.
Fig. 4 is the block diagram according to the camera unit of the embodiment of the invention.This system comprises a sensor unit 32 and a transmitter chip 34.In the present embodiment, sensor unit 32 provides a digital signal, gives transmitter chip 34.Transmitter chip 34 is broadcasted this signal with the PAL/NTSC reference format.Sensor unit 32 comprises 55, one microphones 51 of a sensor chip and a camera lens 52.Sensor unit 32 can comprise an infrared ray (IR) detector 151 simultaneously, and environment and state change transducer 152, and touch input device.Camera unit uses pyroscan 151 to come the receiving remote order, explains on the network equipment and carries out this order and be transferred to the main frame receiving element.The infrared ray order is initialised at the remote control unit that is configured the transmission network equipment or host computer control order.The example of environment change comprises: vibration, motion, noise, light, temperature change or flue dust.Smoke Sensor or detector can be given main frame, and localized network equipment itself or another destination network device provide appropriate signals.The example that state changes comprises battery life or sender unit cap removal.The notice that environment or state change will be transferred to main frame by the device transmission channel as data-signal.In host side, signal generates appropriate control signals and sends to a targeted peripheral device to channel from main frame by the back, for example camera unit or other targeted peripheral device through handling.Give the main frame except that relaying, such notice can also be handled by the network equipment is local.Sensor chip 55 comprises an optical arrays (photoarray) 54, as CMOS or ccd sensor array, and a logical block 56.Logical block comprises a row and column decoder, digital control buffer and row logic.The work of array timing and control logic 60 array of controls.Simultaneously, analog to digital converter 58 is integrated on the sensor chip 55.In case after each light position (photosite) arranged that related electric capacity is recharged according to image, logical block 56 just received the value that a light position is arranged from optical arrays, and continuously data is outputed to the transmitter chip by analog to digital converter 58.General input and output (I/O) interface 53 in addition that provides simultaneously.Loud speaker, general I/O and environment or condition change signal can also send transmitter chip 54 to by analog to digital converter.
PAL/NTSC transmitter chip 34 is from sensor chip 55 receiving digital signals, and sends the receiver unit 40 shown in Fig. 3 and 5 to simulation PAL/NTSC form.Number format image, audio frequency and data-signal are converted to analog format by NTSC digital encoder 62 so that be transferred to NTSC transmitter 64, and 64 pairs of radio-frequency (RF) energy of passing to antenna 66 of NTSC transmitter generate, amplify, and shaping.The NTSC signal of antenna 66 emissions is received by the receiver unit shown in Fig. 3 and 5 40, and PAL/NTSC transmitter chip capacity is big and cost is very low, can be effective as commercial use.In addition, this type of chip carries out all controls synchronous and input storage, so sensor information (signal) output can correctly be mated with the output of PAL/NTSC chip.The data of storage buffer buffer sensor output so just need be set in video camera.Except that transmitter chip 34, transmitter unit comprises a receiver unit 164 that receives instruction or control signal from main frame or beacon simultaneously.Beacon signal can be provided by public network by the beacon or the remote beacon of this locality.The beacon that the beacon that carries during the child play of the beacon that the use-case of local beacon carries as the people in local area network (LAN)-for example or the elderly's walking are carried in localized network or on every side time the, or the beacon that carries of the employee in a building.The use-case of remote beacon is identical, unless the enforceable beacon ring that they are positioned at outside the localized network scope and are had on by the convict under the situation of paroling.Order and control signal can also provide by environment and state change transducer and touch input device this locality.Receiver unit 164 receives order or control signal broadcasting from transmitting antenna 141 or beacon.Broadcast singal is received by reception antenna 166.Signal passes to amplifier 266, they be transferred to read that subelement is explained and carry out before pass to demodulator 366.
Fig. 5 is the more detailed block diagram according to the receiver unit of the embodiment of the invention.The NTSC format signal that receiver antenna 41 receives by 34 broadcasting of NTSC transmitter chip.The signal that receives passes to demodulator 74 then by a tuner and an amplifier 72, and the signal that receives at demodulator 74 is broken down into its original base band image, audio frequency and data.These three baseband signals are transmitted to an analog to digital converter 44 so that baseband signal is converted to digital form.This signal is sent to digital signal processor and compresses, and shears, and image zoom and other operation are as digital filtering.Compression is sheared, the digital signal processor function executing that image zoom and other processing capacities are pressed host bus bandwidth and/or processor, if the capacity of main frame bandwidth or processor increases, these processing just can reduce.After handling, digital signal is transmitted to bus interface 48.
Fig. 5 has shown main subelement in the backward channel operation of receiver unit simultaneously.Here it is transmitter unit 142 and transmit antenna 141.Transmitter 142 comprises a modulator 174 and an amplifier 172.Handle and be provided for modulator 174 by the control signal that bus interface is received by BIU 48.Be amplified to the power stage of wanting from the modulation signal of modulator 174 by amplifier 172 and be transferred to destination network device reception antenna 166 by transmitting antenna 141 then.
For the forward channel operation, bus interface 48 coupling numbers word signal processors 76 are to bus 50.Bus interface 48 comprises a bus control unit buffer 78 and a bus control unit 80.The a part of data of bus control unit buffer 78 storages, bus control unit 80 controls are sent to the transfer rate of the data of bus.Therefore, bus interface 48 and digital signal processor 76 are for optimum utilization bus bandwidth deal with data together.Understand the more details of processing, can be with reference to the co-pending application of common assignee, application number is No.09/346561, application on June 30th, 1999, title is " video camera of no frame buffering ".Integrated receive and send with signal processing function can by each function independently chip carry out in sub-component mode 25.Equally, all functions can be integrated in single integrated circuit, in application-specific integrated circuit (ASIC) (ASIC).
Shown in Fig. 6 is the main spare part of digital signal processor 76 embodiment among Fig. 5.Digital signal processor comprises image, the circuit that the buffering of audio frequency and outside input/output signal and vision signal are handled.Piece 90 is one and extracts YUV information and it is converted to the circuit of rgb format from vision signal.(YUV is to use in the local signal of the analog image of PAL/NTSC form, and Y represents brightness, and on behalf of redness, U subtract Y, and on behalf of blueness, V subtract Y.Needing displayed image on the computer monitor of digital of digital video data, yuv data must convert the RGB three primary colors to).After 90s of piece is a scaler 92 and then, it with image transform to the XY yardstick that requires.Piece 96 managing video buffers and piece 98 are one to be handled and the circuit of management audio frequency buffering.The bus control unit buffering 78 of Fig. 5 is used to image, audio frequency and control data.Image and their buffer portions separately of audio buffer administrative unit management, or the identical buffer portion of managed together.Equally, can increase additional buffer.Piece 94 is to be used for the circuit of compressing image and voice data.Piece 100 is handled general ancillary equipment I/O data.
With reference to figure 5, when the forward direction channel system comes into force, bus control unit 80 will consult to obtain the bandwidth of a specified quantitative with bus 50.In case the width of bandwidth is determined, digital signal processor 76 adapts to available bandwidth with work established data amount and message transmission rate of bus control unit buffering 78.
The command channel system allows control signal to broadcast from a main frame or from several main frames to a network equipment.Similarly, the command channel system allows control signal from a plurality of network equipments individual host to be broadcasted, or from single network equipment to several host broadcast.Therefore, the command channel system comprises that simultaneously multiplexer and demultiplexer synthesize and separate several signals.
Another example of forward channel work is to send image with digital form, and sound and control data are to receiver, and receiver receives the number format data and carries out all necessary processing and makes it be fit to the bandwidth of communication bus.Such example has replaced NTSC transmitter chip and its digital to analog converter with a digital transmitter chip, and removes analog to digital converter from receiver unit.The benefit of number format broadcast system is that it avoids being encoded to analog signal and the decoding in receiver unit in transmitter.Avoid the coding that adds and decoding with cost saving and improve signal quality.And a digital transmission system can be utilized popular digital telephone system spare part.
Any forward direction and back of comprising be to channel and with the embodiment of the command channel operation of analog or digital form broadcasting, and all the receiver 42 that externally carries out the higher-wattage of forward channel operation in the receiver unit by the low-powered transmitter 34 in a lower power receiver 134 that externally carries out the backward channel operation in the higher relatively power transmitter 142 in the receiver unit 40 and the ancillary equipment 30 and the ancillary equipment 30 and is formed.Logic be by with battery-operated lower powered wireless device and mooring to bus, for example USB forms with the equipment that obtains higher-wattage.
As in this specialty the technical staff understood, under the prerequisite that does not depart from intrinsic propesties of the present invention, the present invention can be embodied as other specific formation.For example, ancillary equipment can be a video camera, or another such equipment or a facsimile machine, a photocopier, and a scanner or other network peripherals be phone, video telephone, videoconference and video conference device for example.Equally, a peripheral controls signal can receive at another network equipment at first, relays then and orders main frame to go to handle and generate suitable command signal.Command signal then arrives destination network device by the back of host receiver to Channel Transmission.The embodiment of other that these can be included in the scope of the present invention claim is below set forth.
Claims (26)
1. a wireless transmission and receiving from the system of the control signal of main frame to a network equipment, described system comprises;
A) main frame that control signal is provided;
B) be used to transmit described control signal and the bus that is coupled to described main frame;
C) transmitter unit that is used for the described control signal of wireless transmission, described transmitter unit is made up of following:
ⅰ) bus interface equipment that is coupled with described bus;
ⅱ) one is coupled to described bus, handles described control signal and is configured the transmitter of the radio-frequency (RF) energy that is used to transmit with generation:
ⅲ) one is coupled to described transmitter, is used for described radio-frequency (RF) energy is gone into to external radiation the transmitting antenna in space; With
D) network equipment that is used for the signal of wireless receiving radiation, the described network equipment is made up of following:
ⅰ) reception antenna that is used to receive the signal of described radiation;
ⅱ) one is coupled to described reception antenna, and is constituted as the receiver of the signal of amplification and the described radiation of demodulation; With
ⅲ) one is coupled to described receiver, the control circuit of the command signal that the signal interpretation of described radiation is become to be used to carry out.
2. according to the system of claim 1, wherein, described bus is (a) general universal serial bus (USB), (b) internal integrated circuit (II C) bus, (c) IEEE 1394 buses, (d) parallel port, (e) parallel port of an enhancing (EPP) and (f) one of dilatation port (ECP).
3. according to the system of claim 1, wherein, the described transmitter of described transmitter unit is made up of a modulator unit and an amplifier unit.
4. according to the system of claim 1, wherein, the receiver of the described network equipment is made up of an amplifier unit and a demodulator unit.
5. according to the system of claim 1, also comprise being configured to receive second network equipment of control signal from described same transmitter unit.
6. according to the system of claim 1, also comprise by second bus and be coupled to second main frame that is configured second transmitter unit that transmits control signal to the described network equipment.
7. according to the system of claim 1, wherein, the described network equipment is a video camera.
8. according to the system of claim 1, wherein, the described receiver of the described network equipment is configured from a beacon received RF signal.
9. one kind is used for from the system of transmission of host-to-network equipment wireless and reception control signal, and described system is made up of following:
A) main frame that control signal is provided;
B) be coupled to the bus that described main frame is used to transmit described control signal, wherein, described bus is (a) general universal serial bus (USB), (b) internal integrated circuit (II C) bus, (c) IEEE1394 bus, (d) parallel port, (e) parallel port of an enhancing (EPP) and (f) one of dilatation port (ECP);
C) transmitter unit that is used for the described control signal of wireless transmission, described transmitter unit is made up of following:
ⅰ) bus interface equipment that is coupled with described bus;
ⅱ) one is coupled to described bus, handles described control signal and is configured transmitter with the radio-frequency (RF) energy that generates transmission, and it is made up of a modulator unit and an amplifier unit;
ⅲ) one is coupled to described transmitter, is used for described radio-frequency (RF) energy is gone into to external radiation the transmitting antenna in space; With
D) network equipment that is used for the signal of wireless receiving radiation, the described network equipment is made up of following:
ⅰ) reception antenna that is used to receive the signal of described radiation;
ⅱ) one is coupled to described reception antenna, and is configured the receiver with the signal of amplification and the described radiation of demodulation, and it is made up of an amplifier unit and a demodulator unit; With
ⅲ) one is coupled to described receiver, the signal interpretation of described radiation is become the control circuit of the command signal of execution.
10. system that is used for from the network equipment to the main frame wireless transmission and receives control signal comprises:
A) network equipment that is used for the described control signal of wireless transmission, the described network equipment is made up of following:
ⅰ) handle described control signal so that the control circuit that transmits for one;
ⅱ) one is coupled to described control circuit, handles described control signal and is configured transmitter with the radio-frequency (RF) energy that generates transmission;
ⅲ) one is coupled to described transmitter, is used for described radio-frequency (RF) energy is gone into to external radiation the transmitting antenna in space; With
B) receiver unit that is used for the signal of wireless receiving radiation, described receiver is made up of following:
ⅰ) reception antenna that is used to receive the signal of described radiation;
ⅱ) one is coupled to described reception antenna, and is configured with receiver tuning, amplification becomes command signal with the signal of the described radiation of demodulation;
ⅲ) one with the coupling of described receiver, and be configured bus interface equipment with the transmission of handling described command signal;
C) one is coupled to the bus that described bus interface equipment is used to transmit described command signal; With
D) one is coupled to the main frame that described bus is used to receive described command signal.
11. system according to claim 10, wherein, described bus is (a) general universal serial bus (USB), (b) internal integrated circuit (II C) bus, (c) IEEE 1394 buses, (d) parallel port, (e) parallel port of an enhancing (EPP) and (f) one of dilatation port (ECP).
12. according to the system of claim 10, wherein, the described receiver of described receiver unit is by a tuner, an amplifier unit and a demodulator unit are formed.
13., further comprise being configured to transmit a control signal to second network equipment of same main frame according to the system of claim 10.
14., comprise that one is coupled to by second bus and is configured second main frame that receives second receiver unit of control signal from the same network equipment according to the system of claim 10.
15. according to the system of claim 10, wherein, the described network equipment is a video camera.
16. according to the system of claim 10, wherein, the described network equipment also comprises:
Infrared (IR) detector;
A touch input device;
General I/O transducer;
Change transducer with environment and state.
17. a transmitting set unit that is used for wireless transmission control signal is made up of following:
ⅰ) bus interface equipment that is coupled with bus;
ⅱ) one is coupled to described bus, handles described control signal and is configured the transmitter of the radio-frequency (RF) energy that is used to transmit with generation; With
ⅲ) one is coupled to described transmitter, is used for described radio-frequency (RF) energy is gone into to external radiation the transmitting antenna in space;
18. transmitting set unit according to claim 17, wherein, described bus is (a) general universal serial bus (USB), (b) internal integrated circuit (II C) bus, (c) IEEE 1394 buses, (d) parallel port, (e) parallel port of an enhancing (EPP) and (f) one of dilatation port (ECP).
19. according to the transmitting set unit of claim 17, wherein, described transmitter is made up of a modulator unit and an amplifier unit.
20. a transmitting set unit that is used for wireless transmission control signal, described transmitter unit comprises:
ⅰ) be coupled to the bus interface of bus, wherein said bus is (a) general universal serial bus (USB), (ⅰ) internal integrate circuit bus (II C), (c) IEEE 1394 buses, (d) parallel port, (e) parallel port of an enhancing (EPP) and (f) one of dilatation port (ECP);
ⅱ) one is coupled to described bus, handles described control signal and is configured transmitter with the radio-frequency (RF) energy that generates transmission, and it is made up of a modulator unit and an amplifier unit; With
ⅲ) one is coupled to described transmitter, is used for described radio-frequency (RF) energy is gone into to external radiation the transmitting antenna in space;
21. a method that is used for the operate wireless network equipment control system comprises:
Provide control signal from main frame;
Provide described control signal to bus;
Transmit described control signal from described bus to transmitter;
At described transmitter the form that can broadcast is modulated and be enlarged into to described control signal;
Broadcast described control signal;
Receive described control signal at the network equipment;
Control signal amplified and demodulation with the formation command signal; With
The described command signal of processing is used for command interpretation and the execution at the described network equipment in a processor.
22. in accordance with the method for claim 21, further comprise from transmitter and broadcast described control signal to second network equipment.
23. in accordance with the method for claim 21, further comprise from second main frame and launch second group of control signal to second transmitter to described consolidated network equipment by second bus.
24. the method for an operate wireless network equipment control system comprises:
Provide control signal from the network equipment;
Handling described control signal handles to form command signal;
But transfer described command signal to broadcasting format at transmitter;
Broadcast described command signal;
Receive described command signal at receiver;
Described command signal is amplified and demodulation;
Provide described command signal to a bus; With
Described command signal is offered main frame be used for command interpretation and execution.
25., further comprise from the described network equipment and broadcast described control signal to second receiver that is coupled to second bus that is connected with second main frame according to the method for claim 24.
26., comprise from second network equipment to second group of control signal of described same host broadcast according to the method for claim 24.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43973699A | 1999-11-15 | 1999-11-15 | |
| US09/439,736 | 1999-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1311570A true CN1311570A (en) | 2001-09-05 |
| CN1263236C CN1263236C (en) | 2006-07-05 |
Family
ID=23745928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001373226A Expired - Fee Related CN1263236C (en) | 1999-11-15 | 2000-11-15 | Radio network equipment instruction channel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1263236C (en) |
| DE (1) | DE20019298U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681957A (en) * | 2006-12-22 | 2012-09-19 | 高通股份有限公司 | Enhanced wireless usb protocol and hub |
-
2000
- 2000-11-14 DE DE20019298U patent/DE20019298U1/en not_active Expired - Lifetime
- 2000-11-15 CN CNB001373226A patent/CN1263236C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681957A (en) * | 2006-12-22 | 2012-09-19 | 高通股份有限公司 | Enhanced wireless usb protocol and hub |
| CN104408003A (en) * | 2006-12-22 | 2015-03-11 | 高通股份有限公司 | Enhanced wireless usb protocol and hub |
| US9015368B2 (en) | 2006-12-22 | 2015-04-21 | Qualcomm Incorporated | Enhanced wireless USB protocol |
| CN102681957B (en) * | 2006-12-22 | 2015-04-29 | 高通股份有限公司 | Enhanced wireless USB protocol and hub |
| CN104408003B (en) * | 2006-12-22 | 2018-06-05 | 高通股份有限公司 | The wireless usb protocol and hub of enhancing |
Also Published As
| Publication number | Publication date |
|---|---|
| DE20019298U1 (en) | 2001-04-19 |
| CN1263236C (en) | 2006-07-05 |
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