EP0810746A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Transmission apparatus using a multi-carrier signal with allocation of subcarriers
Assignee: Sony Corp
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Filing: 1997-05-27
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Granted: —
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Expires: 2017-05-27
Abstract
Abstract A transmitting apparatus according to the present invention in communication resources using a multi-carrier signal in which subcarriers of a predetermined number are allocated with a predetermined frequency separation, includes a reference signal source for generating a reference signal with a predetermined frequency (f 0 ), a first signal converting means for generating a first clock signal (having a frequency f 1 ) from the reference signal, a second signa converting mans for generating a second clock signal (having a frequency f 2 ) from the reference signal, a radio frequency signal generating means for generating signals which have separation frequencies of the frequency of the first clock signal, and a transmission signal processing means for processing a transmission signal with the second block signal as a reference of the processing.
Inventors
- 👤 Mitsuhiro Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 15:00
CPC Classifications
H; H04; H04L; H04L5/00; H04L5/02; H04L5/023; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2621; H04L5/0001; H04L5/0014; H04L5/0023
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
127 words
A transmitting apparatus in communication resources using a multi-carrier signal in which subcarriers of a predetermined number are allocated with a predetermined frequency separation, comprising a reference signal source for generating a reference signal with a predetermined frequency (f 0 ) ; a first signal converting means for generating a first clock signal having a frequency (f 1 ) from said reference signal; a second signal converting mans for generating a second clock signal having a frequency (f 2 ) from said reference signal; a radio frequency signal generating means for generating signals which have separation frequencies of the frequency of said first clock signal; and a transmission signal processing means for processing a transmission signal with said second block signal as a reference of said processing.
Claim 2
Dependent Claim
106 words
A transmitting apparatus according to claim 1, further comprising: a third signal converting means for generating a third clock signal having a frequency (f 3 ) from said reference signal; a fourth signal converting means for generating a fourth clock signal having a frequency (f 4 ) from said reference signal; a time division signal generating means for generating signals with separated timings of the slots each of which has a timing based on an inverse of the frequency of said third clock signal; and an audio signal processing means for processing an audio signal with said fourth clock signal as an audio processing reference signal.
Claim 3
Dependent Claim
23 words
A transmitting apparatus according to claim 2, wherein said frequency f 3 is 5 kHz and said frequency f 4 is 8 kHz.
Claim 4
Dependent Claim
51 words
A transmitting apparatus according to claim 1, 2 or 3 wherein said transmission signal processing means generates a multi-carrier signal having the subcarrier whose number is n from said second clock signal having a frequency (f 2 ) and a frequency used for separation of said subcarriers is f 2 /n.
Claim 5
Dependent Claim
15 words
A transmitting apparatus according to claim 4, wherein said number n is set to 32.
Claim 6
Dependent Claim
24 words
A transmitting apparatus according to any preceding claim, wherein said frequency f 1 is 150 kHz and said frequency f 2 is 200 kHz.
Claim 7
Dependent Claim
45 words
A multiple access transmitting apparatus in communication resources using a multi-carrier signal in which subcarriers of a predetermined number are allocated with a predetermined frequency separation, comprising a transmitting apparatus according to any preceding claim; and a multiplex means for multiplexing a plurality of signals.
Claim 8
Dependent Claim
125 words
A receiving apparatus in communication resources using a multicarrier signal in which subcarriers of a predetermined number are allocated with a predetermined frequency separation, comprising: a reference signal source for generating a reference signal having a predetermined frequency (f 0 ) ; a first signal converting means for generating a first clock signal (having a frequency f 1 ) from said reference signal; a second signal converting means for generating a second clock signal (having a frequency f 2 ) from said reference signal; a radio frequency signal generating means for generating signals having separate frequencies of the frequency of said first clock signal; and a received signal processing means for processing a received signal with said second signal as a reference of said processing.
Claim 9
Dependent Claim
106 words
A receiving apparatus according to claim 8, further comprising: a third signal converting means for generating a third clock signal having a frequency (f 3 ) from said reference signal; a fourth signal converting means for generating a fourth clock signal having a frequency (f 4 ) from said reference signal; a time division signal processing means for processing signals with separated timings of the slots each of which has a timing based on an inverse of the frequency of said third clock signal; and an audio signal processing means for processing an audio signal with said fourth clock signal as an audio processing reference signal.
Claim 10
Dependent Claim
23 words
A receiving apparatus according to claim 9, wherein said frequency f 3 is 5 kHz and said frequency f 4 is 8 kHz.
Claim 11
Dependent Claim
54 words
A receiving apparatus according to claim 8, 9 or 10, wherein said received signal processing means processes a received multicarrier signal which has the subcarriers whose number is n by using said second clock signal having a frequency (f 2 ) and a frequency used for separation of said subcarriers is f 2 /n.
Claim 12
Dependent Claim
15 words
A receiving apparatus according to claim 7, wherein said number n is set to 32.
Claim 13
Dependent Claim
28 words
A receiving apparatus according to any one of claims 8 to 12, wherein said frequency f 1 is 150 kHz and said frequency f 2 is 200 kHz.
Claim 14
Dependent Claim
54 words
A multiple access receiving apparatus in communication resources using a multicarrier signal in which subcarriers of a predetermined number are allocated with a predetermined frequency separation, comprising: a receiving apparatus according to any one of claims 8 to 13; and a de-multiplexing means for generating plural series of codes from one series of signals.
References Cited (Backward Citations)
No citation records indexed.
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