The present application relates to a method and apparatus. In some embodiments the method and apparatus relate to speaker apparatus.
Some portable devices comprise integrated speakers for creating sound such as playing back music or having a telephone conversation. The loudness of the integrated speakers is important especially in environments where the ambient noise levels are high, even indoors. The loudness of the integrated speakers in a portable device is important for perception of ringtones of a mobile telephone. In some countries the loudness of the integrated speakers is important for listening to radio broadcasts.
In some parts of the world a portable device with an integrated speaker may be the only device the user owns which is capable of playing music. For example, a user may only be able to play music using a loudspeaker of a mobile telephone. The loudness and quality of sound from an integrated speaker is even more important if a user is solely reliant on an integrated speaker of a portable device for music playback.
Furthermore nanotechnology is a toolbox of methods that enable the tailoring or construction of structures at molecular scales and permit the tuning of properties of the materials forming the structures. These advanced materials enable bendable and even stretchable devices to be constructed. The possibility to bend, twist and stretch the device with the ability to measure the affect of the bending, twisting and stretching the device enables the bending, twisting or stretching to be used as an input method to control the device.
According to a first aspect there is provided an apparatus comprising: a flexible substrate material configured to operate in at least two shapes; and at least one transducer located within the flexible substrate material configured to produce a transducer output, wherein the flexible substrate is configured to affect the transducer output.
The flexible substrate may be configured with at least one adjustable cavity which can open and close a surface opening coupling the transducer to the outside of the apparatus.
The flexible substrate may be configured with two adjustable cavities, a first cavity opening a surface opening coupling the transducer to the outside of the apparatus and a second cavity forming an adjustable acoustic filter for the transducer.
The apparatus may further comprise an adhesive material on the surface of the flexible substrate material so to enable a seal when closing the adjustable cavity.
The apparatus may further comprise a layer of harder flexible material on the surface of the flexible substrate material.
The flexible substrate material may be configured with the at least one adjustable cavity to form a small opening suitable for an earpiece opening.
The flexible substrate material may be configured with the at least one adjustable cavity to form a large opening suitable for a handsfree opening.
The at least one transducer may be a dipole transducer, and wherein the at least one adjustable cavity may comprise a first adjustable cavity which can open and close a surface opening coupling the transducer to one side of the apparatus and a second adjustable cavity which can open and close a second surface opening coupling the transducer to the opposite side of the apparatus.
The flexible substrate material may couple at least two transducers in such a way that flexing the substrate material locates the transducers within a defined array configuration.
The flexible substrate material may be configured to be able to perform at least one of: stretched so to increase the distance between the at least two transducers; compressed so to decrease the distance between the at least two transducers; bent inwards so to shorten the audio focal point between the at least two transducers; and bent outwards so to lengthen the audio focal point between the at least two transducers.
The flexible substrate material may form a flexible mesh locating the at least one transducer relative to other transducers.
The flexible substrate material may be configured to propagate acoustic waves between the outside of the apparatus and the transducer.
The transducer output may be at least one audio signal affected based on the shape of the flexible material.
The apparatus may further comprise: at least one sensor configured to generate a configuration output; and a signal processor configured to signal process the transducer output dependent on the configuration output.
The at least one sensor may comprise at least two sensors of different types.
The at least one transducer may comprise an array of transducers which are flexibly coupled by the flexible substrate material.
The flexible substrate material may be a web of flexible polymer which surrounds the transducers.
The flexible substrate material may comprise at least one of: a carbon nanotube network; a graphene ribbon network; a flexible polymer; a cavity or void filled with foam; a polymer material; a foam material; and a polymer with microscale cracks configured to make the substrate flexible.
According to a second aspect there is provided an apparatus comprising: flexible substrate means configured to operate in at least two shapes; and transducer means located within the flexible substrate means configured to produce a transducer means output, wherein the flexible substrate means affect the transducer means output.
The flexible substrate means may comprise at least one adjustable cavity which can open and close a surface opening coupling the transducer means to the outside of the apparatus.
The flexible substrate means may be configured with two adjustable cavities, a first cavity opening a surface opening coupling the transducer means to the outside of the apparatus and a second cavity forming an adjustable acoustic filter for the transducer means.
The apparatus may further comprise adhesive means on the surface of the flexible substrate means so to enable a seal when closing the adjustable cavity.
The apparatus may further comprise a further more rigid means on the surface of the flexible means.
The flexible substrate means may be configured with the at least one adjustable cavity to form a small opening suitable for an earpiece opening.
The flexible substrate means may be configured with the at least one adjustable cavity to form a large opening suitable for a handsfree opening.
The transducer means may be a dipole transducer, and wherein the at least one adjustable cavity may comprise a first adjustable cavity which can open and close a surface opening coupling the transducer means to one side of the apparatus and a second adjustable cavity which can open and close a second surface opening coupling the transducer means to the opposite side of the apparatus.
The flexible substrate means may couple at least two transducer means in such a way that flexing the substrate material locates the transducer means within a defined array configuration.
The flexible substrate means may be configured to be able to perform at least one of: stretched so to increase the distance between the at least two transducer means; compressed so to decrease the distance between the at least two transducer means; bent inwards so to shorten the audio focal point between the at least two transducer means; and bent outwards so to lengthen the audio focal point between the at least two transducer means.
The flexible substrate means may form a flexible mesh locating the at least one transducer means relative to other transducer means.
The flexible substrate means may be configured to propagate acoustic waves between the outside of the apparatus and the transducer means.
The transducer means output may be at least one audio signal affected based on the shape of the flexible substrate means.
The apparatus may further comprise: at least one sensor means for generating a configuration output; and signal processor means for signal processing the transducer output dependent on the configuration output.
The at least one sensor means comprises at least two sensors of different types.
The at least one transducer means may comprise an array of transducers which are flexibly coupled by the flexible substrate material.
The flexible substrate means may be a web of flexible polymer which surrounds the transducers.
The flexible substrate means may comprise at least one of: a carbon nanotube network; a graphene ribbon network; a flexible polymer; a cavity or void filled with foam; a polymer material; a foam material; and a polymer with microscale cracks configured to make the substrate flexible.
The transducer or transducer means may be at least one of: a microphone transducer; and a speaker transducer.
For a better understanding of the present application and as to how the same may be carried into effect, reference will now be made by way of example to the accompanying drawings in which:
The following describes apparatus and methods for providing flexible or stretchable devices suitable for controlling audio inputs.
Before building the totally flexible or stretchable device that includes only flexible or stretchable components, it is possible to build a flexible or stretchable device that consists of a stretchable or flexible substrate and both rigid and flexible or stretchable components. In the case of rigid components, the rigid components should be as small as possible in order to keep the size of the device small. In addition to the flexible or stretchable substrate the connectors or couplings can in some embodiments also be flexible or stretchable.
It would be understood that in some embodiments the performance of connecting polymers would not be good enough for stretchable speaker connects. However in some embodiments carbon nano-tube networks of graphene ribbon networks could provide or form stretchable connects.
The performance of an electro-dynamic speaker in some embodiments depends on the geometry of cavities, or acoustic chambers coupled to the transducer. In some embodiments thus the flexible or stretchable device can be configured to be formed with an electro-dynamic speaker kept rigid.
The portable device 1 can be a mobile phone, portable audio device, user equipment or any other means for playing sound. The portable device is in some embodiments a mobile terminal, mobile phone or user equipment for operation in a wireless communication system. In other embodiments, the portable device is any suitable electronic device configured to generate sound, such as, for example, a digital camera, a portable audio player (also known as MP3 players), a portable video player (MP4 player).
The portable device in some embodiments comprises a dipole speaker 7. The dipole speaker can comprise any suitable acoustic transducer means. The acoustic transducer means can be in some embodiments a dynamic or moving coil configuration, a piezoelectric transducer, an electrostatic transducer or a transducer array comprising microelectromechanical systems (MEMS). Additionally or alternatively the transducer comprises a multifunction device (MFD) component having any of the following: combined earpiece, integrated handsfree speaker, vibration generation means, or a combination thereof.
The dipole speaker 7 can be configured in some embodiments to receive power from a printed circuit board or printed wire board. The printed wire board/printed circuit board can comprise many different components such as a processor, memory, transceiver, sound generating module. The printed wire board or printed circuit board can furthermore in some embodiments be connected or coupled to a display and furthermore in some embodiments coupled to an antenna.
In some embodiments the dipole speaker can be configured to be located within the portable device 1 in a fixed or rigid portion 3 of the portable device. However the portable device is configured with a flexible or stretchable portion or flexible substrate material or means which can open or close surface areas located between the dipole speaker 7 and the external portion of the device. For example
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In such a way the portable device can be configured to switch the direction and volume of the sound according to the orientation of the device. In other words by bending the portable device in a first direction a hole at the top surface can be opened or formed and the hole of the bottom closed or sealed enabling in such embodiments to permit sound to exit out from the top of the device. Furthermore by bending the portable device to the other direction the hole of the top closes and the hole of the bottom opens permitting sound to exit from the bottom of the portable device.
In some embodiments therefore the portable device or apparatus comprises a flexible device configured with a flexible substrate material, the flexible device further configured with tiny cavities on at least one of an upper part and lower part of the device, and a dipole speaker which can be configured to be located within the device between the cavities.
In some embodiments the flexible device can be configured with adhesive 11 material on the surface of the substrate so to enable an better seal when closing the cavities.
Furthermore in some embodiments the portable device is constructed with a thin layer of harder flexible material on the surface to make the device feel nice in the hand.
It would be understood that in some embodiments the speaker, for example as shown herein the dipole speaker, can be configured to operate within a flexible or stretchable device. Wherein typically speakers operate within fixed cavities, the geometries of which affect the sound pressure level, and thus the sound quality of the device, the bending and stretching the device as can have an effect on the audio output. In some embodiments therefore the portable device can be configured in such a manner that for the stretchable device the transducer, for example a piezoelectric transducer, can be configured to actuate or move the surface of the portable device which in turn is configured to actuate the air in contact with the surface of the device to generate the acoustic waves for outputting an audio signal. In such embodiments the actuator can be configured to be both bendable and rigid enough according to the situation.
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Although the examples shown herein show a one dimension configuration it would be understood that in some embodiments two dimension speaker transducer configurations could be constructed using further one dimensional arrays.
Furthermore it would be understood that although embedded transducers are shown that transducers which are partially exposed on the surface of the mobile device could be implemented in some embodiments.
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In some embodiments the portable device 1 can be configured with a line or one dimensional array of acoustic transducers, or microphones, configured to convert a received acoustic wave into a suitable electrical form. The acoustic transducers or microphones can in some embodiments be located within a stretchable or flexible substrate. For example the substrate can in some embodiments comprise a polymer or foam material. In some embodiments the portable device maintains some element of support for the acoustic transducers by means of a surface layer which is more rigid than the interior of the substrate or in some embodiments the substrate can overlie a flexible and/or stretchable skeleton. Furthermore in some embodiments the acoustic transducers are configured to be at least partially embedded within the substrate of the portable device.
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In such a manner any suitable or desired configuration of microphones can be constructed in such embodiments of the application. For example with respect to
Furthermore it would be appreciated that in some embodiments by bending the substrate two or three dimensional transducer arrays can be formed. For example by simply bending the flexible substrate into an arc the transducers can be configured to form an arc array of transducers, defined by an arc centre 577 and first arc angle 571 describing a separation between the first and second transducers, second arc angle 573 describing a separation between the second and third transducers, and third arc angle 575 describing a separation between the third and fourth transducers.
In such a manner in some embodiments the portable device or apparatus can be further configured to model the beam former settings with modes according to the configuration of the microphones. In other words the processing of the signals can be determined based on the arrangement of the substrate. In other words in some embodiments the substrate is configured to provide the relevant information with respect to the distances between transducers and so enable signal processing of inputs or outputs dependent on the configuration of the transducers.
In some embodiments the transducer configuration or arrangement is sensed due to different acoustic field measured.
In some embodiments therefore apparatus can comprise a microphone array, a flexible and/or stretchable substrate at least partially within which is located the microphone array. The flexible and/or stretchable substrate can be configured to be any suitable polymer. The structure of the polymer can in some embodiment be designed such that the effect of the stretching or bending is more controlled than with a continuous substrate. In some embodiment the apparatus can further comprise a configuration sensor. Furthermore in some embodiments the apparatus can further comprise signal processing of the audio signal dependent for example on a sensor. Such a sensor can be an accelerometer, orientation sensor, and furthermore machine learning can in some embodiments can be implemented to recognize the orientation of the device and thus optimize the direction of the beam. In some embodiment the microphones or transducers can be coupled by stretchable and/or connects such as a graphene ribbon network.
It would be understood that in some embodiments that the transducers themselves be configured in a two or three dimensional array configuration.
It would be understood that the construction of a large rigid transducer configuration would not in some embodiments be suitable for implementation in flexible and/or stretchable substrate portable devices.
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Thus in some embodiments there can comprise an apparatus comprising a loudspeaker array of small, rigid electro-dynamic loudspeakers. In some embodiments the array comprises at least 8 loudspeakers. The transducers as shown herein can be separated or coupled by a stretchable substrate. The substrate can in some embodiments be a polymer or thin layer of any material with microscale cracks that make the layer stretchable. In some embodiments there can overlie the transducer a thin, flexible or stretchable surface layer configured to be suitable for protecting the transducers from dust, for example a nylon net.
It shall be appreciated that the term portable device can in some embodiment be user equipment. The user equipment is intended to cover any suitable type of wireless user equipment, such as mobile telephones, portable data processing devices or portable web browsers. Furthermore, it will be understood that the term acoustic sound channels is intended to cover sound outlets, channels and cavities, and that such sound channels may be formed integrally with the transducer, or as part of the mechanical integration of the transducer with the device.
In general, the various embodiments may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects of the invention may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device, although the invention is not limited thereto. While various aspects of the invention may be illustrated and described as block diagrams, flow charts, or using some other pictorial representation, it is well understood that these blocks, apparatus, systems, techniques or methods described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
The embodiments of this invention may be implemented by computer software executable by a data processor of the mobile device, such as in the processor entity, or by hardware, or by a combination of software and hardware.
For example, in some embodiments the method of manufacturing the apparatus may be implemented with processor executing a computer program.
Further in this regard it should be noted that any blocks of the logic flow as in the Figures may represent program steps, or interconnected logic circuits, blocks and functions, or a combination of program steps and logic circuits, blocks and functions. The software may be stored on such physical media as memory chips, or memory blocks implemented within the processor, magnetic media such as hard disk or floppy disks, and optical media such as for example DVD and the data variants thereof, CD.
The memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory. The data processors may be of any type suitable to the local technical environment, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs), application specific integrated circuits (ASIC), gate level circuits and processors based on multi-core processor architecture, as non-limiting examples.
Embodiments of the inventions may be practiced in various components such as integrated circuit modules. The design of integrated circuits is by and large a highly automated process. Complex and powerful software tools are available for converting a logic level design into a semiconductor circuit design ready to be etched and formed on a semiconductor substrate.
Programs, such as those provided by Synopsys, Inc. of Mountain View, Calif. and Cadence Design, of San Jose, Calif. automatically route conductors and locate components on a semiconductor chip using well established rules of design as well as libraries of pre-stored design modules. Once the design for a semiconductor circuit has been completed, the resultant design, in a standardized electronic format (e.g., Opus, GDSII, or the like) may be transmitted to a semiconductor fabrication facility or “fab” for fabrication.
As used in this application, the term ‘circuitry’ refers to all of the following:
This definition of ‘circuitry’ applies to all uses of this term in this application, including any claims. As a further example, as used in this application, the term ‘circuitry’ would also cover an implementation of merely a processor (or multiple processors) or portion of a processor and its (or their) accompanying software and/or firmware. The term ‘circuitry’ would also cover, for example and if applicable to the particular claim element, a baseband integrated circuit or applications processor integrated circuit for a mobile phone or similar integrated circuit in server, a cellular network device, or other network device.
The foregoing description has provided by way of exemplary and non-limiting examples a full and informative description of the exemplary embodiment of this invention. However, various modifications and adaptations may become apparent to those skilled in the relevant arts in view of the foregoing description, when read in conjunction with the accompanying drawings and the appended claims. However, all such and similar modifications of the teachings of this invention will still fall within the scope of this invention as defined in the appended claims.
Number | Date | Country | Kind |
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1109103.0 | May 2011 | GB | national |
Number | Date | Country | |
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Parent | 14119187 | May 2014 | US |
Child | 16504529 | US |