Telephone receiver transmitter device
First Claim
1. A telephone speaker/microphone device for positioning at a user'"'"'s ear and for coupling to microphone and speaker leads of a telephone or other communication device to enable hands-free communication in duplex mode without use of a handset, said device comprising:
- control circuitry including telephone coupling leads for attachment to the telephone microphone and speaker leads for receiving incoming voice signals from the telephone and for transmitting outgoing voice signals from speaker microphone device to the telephone, said circuitry including secondary leads for transmittance of the respective voice signals to and from a speaker/microphone combination for positioning at the ear and separate from the telephone handset;
a speaker element including positive and negative input leads for driving the speaker element and being configured in size and shape for positioning at the ear, said speaker element being part of the speaker/microphone combination;
a microphone element having an attached drive line capable of carrying voice signal and being configured in size and shape for positioning at the ear and proximate to the speaker element, said speaker element being part of the speaker/microphone combination;
said speaker element and microphone element being wired such that voice signal carried on the drive line of the microphone element is approximately 180 degrees out of phase with voice signal delivered to the speaker element and being physically positioned sufficiently close to result in cancellation of feedback; and
means for transmitting voice signal between the speaker/microphone combination and the control circuitry to electronically couple the speaker and microphone elements to the corresponding secondary leads of the control circuitry.
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0 Petitions
Accused Products
Abstract
A telephone speaker/microphone device for suspending in a user'"'"'s ear to enable hands-free communication without common occurrence of feedback. The device utilizes control circuitry capable of interconnecting microphone and speaker leads from a telephone or other communicating device to a speaker element and microphone element which are embodied in a single earpiece and suspended at the user'"'"'s ear. The speaker element and microphone element are positioned sufficiently close and are wired such that the speaker signal is approximately 180 degrees out of phase with the microphone signal and results in cancellation of feedback by virtue of the out of phase relationship. This device and method are particularly useful in communication devices which utilize a side tone electronically transmitted from the microphone into the speaker element at the user'"'"'s ear. Such side tone signal can be utilized in an out-of-phase relationship to cancel ambient feed back which has historically prevented close proximate use of microphone and speaker elements.
87 Citations
19 Claims
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1. A telephone speaker/microphone device for positioning at a user'"'"'s ear and for coupling to microphone and speaker leads of a telephone or other communication device to enable hands-free communication in duplex mode without use of a handset, said device comprising:
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control circuitry including telephone coupling leads for attachment to the telephone microphone and speaker leads for receiving incoming voice signals from the telephone and for transmitting outgoing voice signals from speaker microphone device to the telephone, said circuitry including secondary leads for transmittance of the respective voice signals to and from a speaker/microphone combination for positioning at the ear and separate from the telephone handset; a speaker element including positive and negative input leads for driving the speaker element and being configured in size and shape for positioning at the ear, said speaker element being part of the speaker/microphone combination; a microphone element having an attached drive line capable of carrying voice signal and being configured in size and shape for positioning at the ear and proximate to the speaker element, said speaker element being part of the speaker/microphone combination; said speaker element and microphone element being wired such that voice signal carried on the drive line of the microphone element is approximately 180 degrees out of phase with voice signal delivered to the speaker element and being physically positioned sufficiently close to result in cancellation of feedback; and means for transmitting voice signal between the speaker/microphone combination and the control circuitry to electronically couple the speaker and microphone elements to the corresponding secondary leads of the control circuitry. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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2. A telephone device including a speaker/microphone device for suspending at a user'"'"'s ear and for coupling to microphone and speaker leads of a telephone to enable hands-free communication in duplex mode without use of a handset, including use of a side tone representing voice signal provided from the user for retransmission to the user, said telephone device including:
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control circuitry including telephone coupling leads for attachment to the telephone microphone and speaker leads for receiving incoming voice signals from the telephone and for transmitting outgoing voice signals from the speaker/microphone device to the telephone, said circuitry including secondary leads for transmittance of the respective voice signals to and from the speaker/microphone device for positioning at the ear and separate from the telephone handset; a speaker element including positive and negative input leads for driving the speaker element and being configured in size and shape for positioning at the ear, said speaker element being part of the speaker/microphone device; a microphone element having an attached drive line capable of carrying voice signal and being configured in size and shape for positioning at the ear and proximate to the speaker element, said speaker element being part of the speaker/microphone device; said speaker element and microphone element being wired such that voice signal carried on the drive line of the microphone element is approximately 180 degrees out of phase with voice signal delivered to the speaker element and being physically positioned sufficiently close to result in cancellation of feedback; and means for transmitting voice signal and side tone between the speaker/microphone device and the control circuitry to electronically couple the speaker and microphone elements to the corresponding secondary leads of the control circuitry. - View Dependent Claims (3)
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14. An interconnect jack for positioning in-line between four microphone and speaker leads of a telephone and corresponding leads of control circuitry for controlling disposition of signal received through the leads, said jack including:
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socket means having two sets of four electrical contacts, two of each of the four electrical contacts being designated as speaker contacts and two being designated as microphone contacts, a first set of the two sets of socket contacts including means for coupling to the telephone microphone and speaker leads, a second set of the two sets of socket contacts including means for coupling to the leads of the control circuitry for transmittance of the voice signals within the control circuitry; four separate plugs configured for individual insertion into the socket means, each plug having a first set of four electrical plug contacts which come into electrical contact with the first set of four contacts of the socket means when inserted therein, a second set of four electrical plug contacts which come into electrical contact with the second set of four contacts of the socket means when inserted therein; means for electrically connecting individual plug contacts of the respective first set of plug contacts of the four separate plugs with the respective second set of plug contacts of each of the four plugs such that all combinations of connections of speaker-to-speaker and microphone-to-microphone contacts existing within the socket means are provided within the four plugs. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification