NEAR FIELD COMMUNICATION APPARATUS

• US 20140369170A1
• Filed: 09/16/2011
• Published: 12/18/2014
• Est. Priority Date: 09/16/2011
• Status: Active Grant

• Current Assignee: Piece Future Pte., Ltd.
• Original Assignee: Nokia Corporation
• Inventors: Inha, Kai, Backman, Juha
• Granted Patent: US 9,401,768 B2
• Time in Patent Office: Days
• US Class Current: 367/140
• CPC Class Codes: H04B 11/00 Transmission systems employing sonic, ultrasonic or infrasonic waves
• CPC Class Codes: H04B 5/00 Near-field transmission systems, e.g. inductive or capacitive transmission systems
• CPC Class Codes: H04B 5/24 Inductive coupling
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04M 1/6058 involving the use of a headset accessory device connected to the portable telephone
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04M 2250/64 file transfer between terminals download of applications H04M1/72406; transfer of messages, e.g. SMS, e-mail or MMS H04M1/7243
• CPC Class Codes: H04R 1/1091 Details not provided for in groups H04R1/1008 - H04R1/1083
• CPC Class Codes: H04R 11/06 Telephone receivers
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones
• CPC Class Codes: H04R 25/43 Electronic input selection or mixing based on input signal analysis, e.g. mixing or selection between microphone and telecoil or between microphones with different directivity characteristics H04R25/407 takes precedence
• CPC Class Codes: H04R 25/554 using a wireless connection, e.g. between microphone and amplifier or using Tcoils
• CPC Class Codes: H04R 5/033 Headphones for stereophonic communication details thereof, e.g. relating to batteries, cables or control elements H04R1/10

Abstract

An apparatus comprising: a transducer suitable for generating an acoustic sound pressure wave being configured to: magnetically couple the apparatus to a further apparatus transducer for transferring data.

Claims

1-54. -54. (canceled)

55. An apparatus comprising:

a transducer suitable for generating an acoustic sound wave being configured to magnetically couple the apparatus to a further apparatus transducer to transfer data.

56. The apparatus as claimed in claim 55, wherein the transducer comprises:

a transducer coil configured to generate a magnetic field for magnetically coupling the transducer to the further apparatus; and

a speaker diaphragm coupled to the transducer coil suitable for generating the acoustic sound wave.

57. The apparatus as claimed in claim 55, wherein the transducer comprises:

a transducer coil configured to detect a magnetic field for magnetically coupling the transducer to the further apparatus; and

a speaker diaphragm coupled to the transducer coil suitable for generating the acoustic sound wave.

58. The apparatus as claimed in claim 55, further comprising a magnetic field data detector configured to detect a magnetic field.

59. The apparatus as claimed in claim 58, wherein the magnetic field data detector comprises a comparator configured to detect data within the magnetic field.

60. The apparatus as claimed in claim 59, wherein the magnetic field data detector comprises at least one of:

an amplifier coupled to the transducer coil and configured to amplify the transducer coil output; and

a demodulator coupled to the amplifier and configured to output the data from the transducer coil output.

61. The apparatus as claimed in claim 55, further comprising an amplifier configured to be selectively coupled to the transducer.

62. The apparatus as claimed in claim 61, wherein the amplifier is configured to drive the transducer coil to magnetically couple the apparatus to a further apparatus transducer for transferring data.

63. The apparatus as claimed in claim 61, wherein the amplifier is configured to drive the transducer coil to generate the acoustic sound wave.

64. The apparatus as claimed in claim 61, wherein the amplifier is configured with a bandwidth from 20 Hz to 10 MHz.

65. The apparatus as claimed in claim 61, wherein the amplifier comprises a first amplifier configured to drive the transducer coil to magnetically couple the apparatus to the further apparatus transducer to transfer data;

and a second amplifier configured to drive the transducer coil to generate the acoustic sound wave.

66. The apparatus as claimed in claim 65, wherein the first amplifier is configured with a bandwidth from 20 kHz to 10 MHz, and the second amplifier is configured with a bandwidth from 20 Hz to 20 kHz.

67. The apparatus as claimed in claim 61, further comprising a modulator coupled to the amplifier, the modulator configured to transfer data.

68. The apparatus as claimed in claim 67, wherein the modulator comprises at least one of:

a direct coding modulator;

a frequency modulator;

a time-division modulator;

a phase modulator;

an error detection modulator; and

an error correction modulator.

69. The apparatus as claimed in claim 55, wherein the transducer comprises at least one of:

an earpiece transducer;

an integrated hands free transducer;

a headset transducer; and

an hearing aid transducer.

70. The apparatus as claimed in claim 55, wherein the transducer is configured to adaptively couple the apparatus to the further apparatus transducer when magnetic field is detected.

71. The apparatus as claimed in claim 70, wherein the adaptive coupling comprises at least one of:

adaptive data rate coupling;

adaptive modulation coupling; and

adaptive frequency coupling.

72. The apparatus as claimed in claim 55, wherein the transducer comprises:

a static magnet; and

dynamic coil, wherein the dynamic coil is biased at a first distance from the static magnet when the transducer is suitable for generating an acoustic sound pressure wave, and biased at a second distance greater than the first distance from the static magnet when configured to magnetically couple the apparatus to the further apparatus transducer.

73. The apparatus as claimed in claim 72, further comprising a biasing amplifier coupled to the transducer, wherein the biasing amplifier is configured to provide a first current to bias the dynamic coil at the first distance from the static magnet, and a second current to bias the dynamic coil at the second distance.

74. A method comprising providing a transducer configured to magnetically couple the apparatus to a further apparatus transducer for transferring data;

and being suitable for generating an acoustic sound wave.