Source: https://patents.google.com/patent/US8761301B2/en
Timestamp: 2018-06-18 16:18:45
Document Index: 13838756

Matched Legal Cases: ['application No. 2', 'application No. 2', 'application No. 05', 'application No. 05', 'application No. 2005328684', 'application No. 2009250975', 'application No. 2005328684', 'application No. 05']

US8761301B2 - Variable encoding and detection apparatus and methods - Google Patents
US8761301B2
US8761301B2 US13776402 US201313776402A US8761301B2 US 8761301 B2 US8761301 B2 US 8761301B2 US 13776402 US13776402 US 13776402 US 201313776402 A US201313776402 A US 201313776402A US 8761301 B2 US8761301 B2 US 8761301B2
US13776402
US20130163658A1 (en )
This patent arises from a continuation of U.S. patent application Ser. No. 11/852,049, which was filed on Sep. 7, 2007, which is a continuation of International Application Serial No. PCT/US2005/07562, filed on Mar. 8, 2005, which claims the benefit of the filing date of U.S. Provisional Application Ser. No. 60/538,701, which was filed on Jan. 23, 2004, the entire disclosures of which are incorporated by reference herein.
The decimal value of each 12-bit packet is coupled to the multiplier 306, which multiplies each decimal value by a factor N to determine the number of samples or corresponding time period between markers. In one example, the value of N is 16 and, therefore, a decimal value of dx, incremented by 1, is multiplied by a factor of 16 to yield a value of 16(dx+1). The value of N could, of course, be selected to have another value. The multiplication is performed to allow for jitter in the transmission and decoding processes carried out down stream of the code generator 300. In the disclosed example, the maximum sample count corresponding to a 12-bit decimal value of 2047 which, if the multiplication factor N is 16, yields a value of 32,768. Accordingly, 32,768 samples would occur between markers in the case of encoding a decimal value of 2047. Alternatively, in this case, a maximum time of 0.68 seconds may elapse between markers if the samples are taken at 48 KHz
1. A method of encoding a media signal, comprising:
determining, with a processor, a media source type associated with a media signal by extracting a broadcast station code from the media signal;
selecting, with the processor, an encoding mode that uses a code having a power level that is based on the media source type; and
encoding, with the processor, the media signal with a code using the selected encoding mode.
2. A method as defined in claim 1, wherein the media source type is a television source, a radio source, or a computer source.
3. A method as defined in claim 1, wherein the media source type is at least one of an over-the-air broadcast signal, a cable broadcast signal, a satellite broadcast signal, an analog signal, or a digital signal.
4. A method as defined in claim 1, wherein the broadcast station code is at least one of a television station code or a radio station code.
5. A method of encoding a media signal, comprising:
determining, with a processor, a media source type associated with a media signal;
selecting, with the processor, an encoding mode that uses a code having a power level that is based on the media source type by selecting an encoding mode that uses a relatively high power level code or a relatively low power level code; and
6. A method of encoding a media signal, comprising:
selecting, with the processor, an encoding mode that uses a code having a power level that is based on the media source type by selecting an encoding mode that uses a code having a first power level or a second power level greater than the first power level; and
7. A method of encoding a media signal, comprising:
encoding, with the processor, the media signal with the code by generating the code to have a predetermined frequency spectrum.
8. An apparatus for encoding a media signal, comprising:
a processor coupled to a memory, wherein the processor is programmed to;
determine a media source type associated with a media signal by extracting a broadcast station code from the media signal;
select an encoding mode that uses a code having a power level that is based on the media source type; and
encode the media signal with a code using the selected encoding mode.
9. An apparatus as defined in claim 8, wherein the media source type is a television source, a radio source, or a computer source.
10. An apparatus as defined in claim 8, wherein the media source type is at least one of an over-the-air broadcast signal, a cable broadcast signal, a satellite broadcast signal, an analog signal, or a digital signal.
11. An apparatus as defined in claim 8, wherein the broadcast station code is at least one of a television station code or a radio station code.
12. An apparatus for encoding a media signal, comprising:
determine a media source type associated with a media signal;
select an encoding mode that uses a code having a power level that is based on the media source type by selecting an encoding mode that uses a relatively high power level code or a relatively low power level code: and
13. An apparatus for encoding a media signal, comprising:
select an encoding mode that uses a code having a power level that is based on the media source type by selecting an encoding mode that uses a code having a first power level or a second power level greater than the first power level: and
14. An apparatus for encoding a media signal, comprising:
encode the media signal with a code using the selected encoding mode by generating the code to have a predetermined frequency spectrum.
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US11852049 Continuation US8406341B2 (en) 2004-01-23 2007-09-07 Variable encoding and detection apparatus and methods
US14141641 Continuation US9210416B2 (en) 2004-01-23 2013-12-27 Variable encoding and detection apparatus and methods
US20130163658A1 true US20130163658A1 (en) 2013-06-27
US8761301B2 true US8761301B2 (en) 2014-06-24
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