Hand-held transmitter having speech storage actuated by transmission failure

• US 6,711,545 B1
• Filed: 10/11/2000
• Issued: 03/23/2004
• Est. Priority Date: 10/13/1999
• Status: Expired due to Term

• Current Assignee: Speech Processing Solutions GmbH
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Hörndl, Manfred
• Primary Examiner(s): NOLAN, DANIEL A
• Application Number:
  US09/686,156
• Time in Patent Office: 1,259 Days
• Field of Search: 704/200, 704/500-502, 704/201, 704/7, 704/3, 455/457, 455/404, 455/411, 455/463, 455/413, 370/345, 342/37, 463/7
• US Class Current: 704/275
• CPC Class Codes: G06F 3/162 Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
• CPC Class Codes: G11C 2207/16 Solid state audio
• CPC Class Codes: G11C 7/16 Storage of analogue signals in digital stores using an arrangement comprising analogue/digital [A/D] converters, digital memories and digital/analogue [D/A] converters
• CPC Class Codes: H04R 1/005 using digitally weighted transducing elements
• CPC Class Codes: H04R 1/04 Structural association of microphone with electric circuitry therefor in deaf-aid sets H04R25/00
• CPC Class Codes: H04R 2420/07 Applications of wireless loudspeakers or wireless microphones

Abstract

A device for processing speech signal is disclosed comprising a speech signal input and speech signal digitizer, a control signal input and control signal digitizer, a digital signal processor, a transmitter to transmit processed digital signals in a cordless fashion to a base station, and a storage means, which is connected upstream of the transmitter and by which, depending on the quality of the communication link between the device and the base station, buffers the processed digital signals to be supplied and to be transmitted between the device and the base station.

Claims

1. A hand held device for processing speech signals, the device comprising:

a speech signal input means for inputting speech signals;

a speech signal digitizing means for digitizing the speech signals;

a control signal input means for inputting control signals;

a control signal digitizing means for digitizing the control signals;

a digital signal processing means for processing the digital speech signals and digital control signals;

a transmitter means for transmitting the processed digital speech signals and processed digital control signals in cordless manner to a base station;

a storage means which is connected upstream of the transmitter means and by which storage means can be stored the digital speech signals to be transmitted and from which storage means can be read out the digital speech signals to be transmitted; and

a control means which can activate and deactivate the reading of digital speech signals from the storage means depending on transmission quality between the device and the base station.

2. The device as claimed in claim 1, wherein the storage means is additionally provided for storing and reading digital control signals to be transmitted.

3. The device as claimed in claim 1, wherein the detection means is provided to determine the transmission quality between the device and the base station.

4. The device as claimed in claim 3, wherein the detection means includes an identification signal generator for generating an identification signal and in that the identification signal can be applied to the transmitter means and transmitted by the transmitter means to the base station.

5. The device as claimed in claim 4, wherein the detection means includes a comparing means for comparing the transmitted identification signal with a response signal of a base station and transmitted to the device as a sequence of the transmitted identification signal.

6. The device as claimed in claim 4, wherein the detection means includes an identification signal generator for generating an identification signal specific to a particular base station.

7. The device as claimed in claim 1, wherein the device and the storage means are arranged so that the storage means can be removed from the device.