Patent Application
20080043204
In above attached drawings:
1, Air Compressor; 2-5, Scent Cans; 6-9, Electro-magnetic valves 10, Air Pump 11, General Scent Transmission Passage 12. Branch Scent Transmission Passage; 13-21, Sound Mufflers 22-30, Pressure-reducing Valves; 31, Air intake, 32. Vertical Scent Field, 33-38. Audience Seats; 39. Scent Release Devices; 40, Air Intake Pipe.
Further description with attached drawings and examples:
A projecting device of Digital scent movie, composed of one set of digital movie projector, one Set of scent signal converter and one set of scent making equipment.
A set of digital movie projector with 5 full frequency sound channels and 1 low frequency sound channel. One of the full frequency sound channels is used as digital sense of smell signal transmission passageway and a sense of smell signal outlet is installed in the corresponding transmission passage.
A set of sense of smell signal converter composed of Receiving Circuit, Detecting Circuit, Processing Circuit and Transmission Circuit. Refer to Drawing 2. The processing circuit includes a CPU and corresponding converting programs. The sense of smell signal outlet of the digital movie projector is connected with the Receiving Circuit inlet of the sense of smell signal converter. The outlet of the Receiving Circuit is performed through Detecting Circuit, Processing Circuit and Transmitting Circuit and sense of smell controlling signal is released from the outlet end of the Transmission Circuit.
A set of scent making equipment, refer to drawing 3, composed of a scent transmission passage, as air compressor,
The scent transmission passage is composed of a General Scent Transmission Passageway (11) and 3 branch scent transmission passages (12)
The General Scent Transmission Passageway (11) is separately connected with 3 branch scent Transmission passages. It is similar with the air conveying system of central air conditioning. Air compressor (1) is used as the driver of scent transmission. One of the outlets of the air compressor is connected with the inlet of the general scent transmission passageway (11).
The outlet of Air pump (10) is connected with the general scent transmission passageway (11) though pipes, and its inlet is connected with the cold air duct of the air conditioning system or connected with fresh air outside of the cinema.
4 electromagnetic valves (6-9) are separately used as controlling switches of corresponding scent releasing controlling. The controlling end of each electromagnetic valve is connected with the sense of smell signal of the sense of smell signal converter; the outlet of the each electromagnetic valve is separately connected with the general scent transmission passageway (11) through ducts.
9 sub branch passages on the 3 branch scent transmission passages (12). There are 9 corresponding pressure reducing valves on the 9 sub branch passages (22-30) and 9 sound mufflers (13-21)
Each pressure reducing valve and muffler are used as a sub branch path. The mufflers have scent release end (39), as drawing 4 indicates. The scent releasing end (39) is installed under or by the audiences' seats and open to the cinema. An air intake device is installed in the upper space in the cinema (31) corresponding to the scent release end (39). A group of air intake devices (31) are installed corresponding to the scent release end (39) and form a vertical scent field floating from bottom to top (33-38). A group of air intake devices (39) are connected with outside of the cinema through air intake pipe (40) and fans.
The scent type, intensity and time control is based on the movie program, designing, scenario and sound. The sense of smell signal and the existing sense of sight and hearing signal are programmed in a digital program when the movie is shooting. The sense of smell signal is programmed in the full frequency sound channel n, n, which is the last full frequency sound channel of a digital movie projector. At the moment according to stipulations of China Broadcast and Television Bureau, the digital movie should have 5 full frequency sound channels and 1 low frequency sound channel, therefore n=5. When digital scent movie is showing, after being detected and processed by the movie projector, sense of smell signal, sense of sight signal and sense of hearing signals are transformed into sound signal A through No. 5 full frequency based on the movie plot, then they are transmitted to the scent can (2-5) and a certain corresponding electromagnetic valve (6-9) through sense of smell digital signal B which is acquired by sense of smell signal converter. Starting the electromagnetic valve the scent based on the corresponding move plot is transmitted into the general scent transmission passageway (11) through the air compressor (1), and they are further transmitted into scent sound muffler (13-21) through scent pressure-reducing valve (22-30) and then they are released to the surrounding area of the audience seats. As the scent sound mufflers (13-21) are installed under the audiences' seats the audience can immediately smell the scent required by the movie plot, like flower, perfume, coffee, vegetable cooking, fruits, sour, pepper, foul, smelling of fish, fireworks and gun powder, etc. If the air intake devices (31) are started then a vertical scent field is being formed from bottom to top.
The scent type, length of release time and intensity can be controlled by choosing different scent cans (2-5) and by controlling the start time, length of release time and intensity. All these can be programmed during the shooting of digital movie programs. Regarding above-mentioned electromagnetic valves, if there is no requirement of the scent intensity, then regular electromagnetic valves can be used. If there is a requirement of scent intensity then service electromagnetic valves should be used. The sense of smell signal is transmitted from the full frequency sound channel of the digital movie projector and forms a unity of sense of smell signal, sense of sight signal, sense of hearing signal and vertical movie and transforms them into a 4-dimensional movie system.
The sound muffler of scent movie is an important target of the quality of digital scent movie. The scent sound muffler of the technology guarantees that there is no noise during the show time of digital scent movie.
The precisely matching of movie scent and the movie frame is another import target of the quality of digital scent movie. The precisely match of the two aspects requires that the audience can immediately get the relative smell from the movie plot. And when the scent of movie plot disappears the smell should be disappeared immediately. The scent can be disappeared immediately by using the vertical scent field of the technology. Of course there should be a work process in advance. All of the electromagnetic valves should be shut off at the same time. The fresh air come out of the air compressor (1) or air pump (10) is conveyed to the scent pressure-reducing valves installed under the audiences' seats, and then further conveyed into the scent sound muffler, and finally the fresh air is released into the cinema through the scent sound muffler.
Example of the setting of sense of smell signal:
Hypothesize No. 2 scent can is Type A perfume, No 3. Scent can is Type B perfume, No. 4 scent can is jasmine scent, and No. 5 scent can is coffee scent. A scent pressure-reducing valve and a scent sound muffler are installed under each audience seat or several audience share one scent pressure-reducing valve and one scent sound muffler.
The Switch process of air compressor (1) is set by Group A digitals. The type of scent of smell signal is set by Group B digitals. Scent intensity is set by Group C digitals. The fresh air conveying air pump (10) is set by Group D digitals. The air intake system is set by Group E digitals. Following is the example of its program:
For example, 20 minutes after the digital movie projector started working, 3 minutes of jasmine is shown in the movie frame, therefore the movie projector should transmit sense of smell signal to start the electromagnetic Valve of No. 4 scent can to release jasmine scent. The release time should be 3 minutes. 30 minutes later people drinking coffee for 5 minutes in the movie frame, the movie projector should transmit sense of smell signal to start the electromagnetic Valve No. 5 scent can to release coffee scent. Release time should be 5 minutes. The coffee scent is Transmitted into the sound muffler from the air compressor through scent pressure reducing valve and then is further released into the cinema. Whenever the scent releasing stops, some natural air should be released to make the air fresh. The air intake devices in the cinema should be kept in a working condition.
The comprehensive program of above-mentioned jasmine scent and coffee scent:
In above example, the scent can electromagnetic valve is started and shut off 5 minutes in advance. The fresh air conveying air pump and the air intake system is started and shut off 5 minutes in advance. Considering time lag of the system, this setting ensures the scent releases and disappears in time. But this is an estimated time. The precise lag time can be acquired by statistics through tests.
The above example explains the technical concept and uniqueness of the invention. Its objective is to let people who are familiar with the technology of this invention to materialize this project, but they are not allowed to use it to limit the scope of its protection. The scope of protection of this invention includes any modification and equivalent alteration based on the principle of this invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 200620077112.8 | Aug 2006 | CN | national |
