Source: http://www.google.de/patents/US7801570
Timestamp: 2013-05-26 03:29:48
Document Index: 526079465

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'art 2', 'art 3', 'art 2']

Patent US7801570 - Directional speaker for portable electronic device - Google PatenteSuche Bilder Maps Play YouTube News Gmail Drive Mehr » Erweiterte Patentsuche | Webprotokoll | Anmelden Erweiterte Patentsuche PatenteA directional speaker for an electronic device having audio output capabilities is disclosed. The directional speaker can thus be used with the electronic device to direct audio output in a directionally constrained manner. As a result, a certain degree of privacy with respect to the audio output is...http://www.google.de/patents/US7801570?utm_source=gb-gplus-sharePatent US7801570 - Directional speaker for portable electronic device Ver�ffentlichungsnummerUS7801570 B2PublikationstypErteilung Anmeldenummer10/826,531 Ver�ffentlichungsdatum21. Sept. 2010Eingetragen15. Apr. 2004 Priorit�tsdatum15. Apr. 2003Auch ver�ffentlicht unterUS7269452US7388962US7587227US8208970US20040208324US20040208325US20040208333US20040209654US20050009583US20070287516US20080279410US20090298430WO2004093488A2WO2004093488A3 ErfinderKwok Wai CheungPeter P. TongC. Douglass ThomasUrspr�nglich Bevollm�chtigterIpventure, Inc. US-Klassifikation455/569.1381/77Internationale KlassifikationH04H1/00H04R9/06H04R1/40H04H20/72H04R1/02H04S3/00H04R27/00H04H20/61H04R25/00H04S1/00H04B5/00H04M1/19H04B1/38H04M1/02H04M1/00H04M1/03H04M1/60H04B3/00 UnternehmensklassifikationH04H20/72H04R2217/03H04S3/00H04R25/554H04R2225/55H04R25/405H04S1/00H04M1/19H04R1/403H04H20/61H04R2201/401H04M1/6091H04M1/03H04R27/00H04M1/605H04R2201/023 Europ�ische KlassifikationH04H20/72H04R1/40BH04R27/00H04H20/61H04S1/00H04R25/40DH04M1/19H04M1/03H04M1/60T2AH04M1/60T2C2AReferenzenPatentzitate (94)Nichtpatentzitate (68) Referenziert von (3)Externe LinksUSPTO USPTO-Zuordnung EspacenetDirectional speaker for portable electronic deviceUS 7801570 B2 Zusammenfassung A directional speaker for an electronic device having audio output capabilities is disclosed. The directional speaker can thus be used with the electronic device to direct audio output in a directionally constrained manner. As a result, a certain degree of privacy with respect to the audio output is achieved for the user of the electronic device, yet the user need not wear a headset or ear phone, or have to hold a speaker against one's ear. The directional speaker can be integral with the electronic device. Alternatively, the directional speaker can be an attachment (or peripheral) to the electronic device.
wherein said peripheral apparatus further comprises a mechanical mechanism that allows said directional speaker to move relative to said housing, thereby allowing repositioning of said directional speaker to direct the sound output towards different directions. Beschreibung
CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority of: (i) U.S. Provisional Patent Application No. 60/462,570, filed Apr. 15, 2003, and entitled �WIRELESS COMMUNICATION SYSTEMS OR DEVICES, HEARING ENHANCEMENT SYSTEMS OR DEVICES, AND METHODS THEREFOR,� which is hereby incorporated herein by reference; (ii) U.S. Provisional Patent Application No. 60/469,221, filed May 12, 2003, and entitled �WIRELESS COMMUNICATION SYSTEMS OR DEVICES, HEARING ENHANCEMENT SYSTEMS OR DEVICES, DIRECTIONAL SPEAKER FOR ELECTRONIC DEVICE, PERSONALIZED AUDIO SYSTEMS OR DEVICES, AND METHODS THEREFOR,� which is hereby incorporated herein by reference; and (iii) U.S. Provisional Patent Application No. 60/493,441, filed Aug. 8, 2003, and entitled �WIRELESS COMMUNICATION SYSTEMS OR DEVICES, HEARING ENHANCEMENT SYSTEMS OR DEVICES, DIRECTIONAL SPEAKER FOR ELECTRONIC DEVICE, AUDIO SYSTEMS OR DEVICES, WIRELESS AUDIO DELIVERY, AND METHODS THEREFOR,� which is hereby incorporated herein by reference.
This application is also related to: (i) U.S. patent application Ser. No. 10/826,529, filed concurrently, now U.S. Pat. No. 7,269,452, and entitled, �DIRECTIONAL WIRELESS COMMUNICATION SYSTEMS,� which is hereby incorporated herein by reference; (ii) U.S. patent application Ser. No. 10/826,527, filed concurrently, and entitled, �DIRECTIONAL HEARING ENHANCEMENT SYSTEMS,� which is hereby incorporated herein by reference; (iii) U.S. patent application Ser. No. 10/826,537, filed concurrently, and entitled, �METHOD AND APPARATUS FOR LOCALIZED DELIVERY OF AUDIO SOUND FOR ENHANCED PRIVACY,� which is hereby incorporated herein by reference; and (iv) U.S. patent application Ser. No. 10/826,528, filed concurrently, and entitled, �METHOD AND APPARATUS FOR WIRELESS AUDIO DELIVERY,� which is hereby incorporated herein by reference.
FIELD OF THE INVENTION The present invention relates to portable electronic devices and, more particularly, to directional speakers for portable electronic devices.
BACKGROUND OF THE INVENTION Today, cellular telephones primarily include only a small speaker, sometime known as an earpiece, that is designed to be placed against the user's ear when the cellular telephone is in use. However, this means that the user cannot clearly hear the audio output from the speaker unless the cellular telephone is placed against the user's ear, with one of the user's hands being used to hold the cellular telephone against the ear. Further, it means that if the user should need to interact with the cellular telephone, such as entering phone numbers, the user would not be able to, in most cases, keep the earpiece against the user's ear. As a result, the user would not be able to simultaneously hear audio output while interacting with the cellular telephone. Use of headsets whether wired or wireless, can alleviate some of these difficulties. However, headsets and ear phones can be inconvenient and even uncomfortable to wear.
SUMMARY OF THE INVENTION The present invention pertains to a directional speaker for a portable electronic device. The directional speaker can be used with the electronic device to direct audio output in a directionally constrained manner. As a result, a certain degree of privacy with respect to the audio output is achieved for the user of the electronic device, yet the user need not wear a headset or ear phone, or have to hold a speaker against one's ear. The directional speaker can be integral with the electronic device. Alternatively, the directional speaker can be an attachment (or peripheral) to the electronic device.
DETAILED DESCRIPTION OF THE INVENTION The present invention pertains to a directional speaker for a portable electronic device. The directional speaker can be used with the electronic device to direct audio output in a directionally constrained manner. As a result, a certain degree of privacy with respect to the audio output is achieved for the user of the electronic device, yet the user need not wear a headset or ear phone, or have to hold a speaker against one's ear. The directional speaker can be integral with the electronic device. Alternatively, the directional speaker can be an attachment (or peripheral) to the electronic device.
In yet another embodiment, the power output from the directional speaker is increased by increasing the transformation efficiency (e.g., demodulation or mixing efficiency) of the ultrasonic signals. According to the Berktay's formula, as disclosed, for example, in �Possible exploitation of Non-Linear Acoustics in Underwater Transmitting Applications,� by H. O. Berktay, in J. Sound Vib., Vol. 2 (4):435-461 (1965), output audio power is proportional to the coefficient of non-linearity of the mixing or demodulation medium.
In another embodiment, the device can, for example, be used for a hearing aid. Different embodiments on hearing enhancement through personalizing or tailoring to the hearing of the user have been described in U.S. patent application Ser. No. 10/826,527, filed concurrently, and entitled, �DIRECTIONAL HEARING ENHANCEMENT SYSTEMS,� which is hereby incorporated herein by reference.
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