التفاصيل البيبلوغرافية
| العنوان: |
TONE-GENERATION TIMING SYNCHRONIZATION METHOD FOR ONLINE REAL-TIME SESSION USING ELECTRONIC MUSIC DEVICE |
| Document Number: |
20120160080 |
| تاريخ النشر: |
June 28, 2012 |
| Appl. No: |
13/334736 |
| Application Filed: |
December 22, 2011 |
| مستخلص: |
An online real-time session is conducted between at least two electronic music devices each equipped with an interface connectible to a communication network and a display with a touch sensing ability. An electronic music device communicates with its counterpart device to count a time Ta1 of making an inquiry about a present time Tb of the counterpart device and a time Ta2 of receiving a response from the counterpart device while setting a time Ta3 which progresses from the time Ta2 and a time interval Td which is counted from the time Ta3. Thus, the electronic music device determines tone-generation timing at which the electronic music device is synchronized with its counterpart device in conducting an online real-time session by way of a calculation of Td+Tb+(Ta3−Ta1)−(Ta2−Ta1)/2, or Td+Tb+(Ta3−Ta2)+(Ta2−Ta1)/2. |
| Inventors: |
Miwa, Akihiro (Hamamatsu-shi, JP) |
| Assignees: |
YAMAHA CORPORATION (Hamamatsu-shi, JP) |
| Claim: |
1. A tone-generation timing synchronization method adapted to a plurality of electronic music devices each including an interface connectible to a communication network, said tone-generation timing synchronization method comprising the steps of: making, by a first electronic music device, an inquiry about a present time Tb of a second electronic music device at a time Ta1 which is counted by the first electronic music device; sending back, by the second electronic music device, the present time Tb to the first electronic music device, wherein the present time Tb indicates the time when the second electronic music device receives or responses to the inquiry made by the first electronic music device; measuring, by the first electronic music device, a time Ta2 of receiving the present time Tb of the second music device; setting, by the first electronic music device, a time Ta3 which progresses from the time Ta2; further setting, by the first electronic music device, a time interval Td which is counted from the time Ta3; and determining tone-generation timing, shared between the first electronic music device and the second electronic music device, at which the first electronic music device is synchronized with the second electronic music device in conducting an online real-time session therebetween by way of a calculation of Td+Tb+(Ta3−Ta1)−(Ta2−Ta1)/2, or Td+Tb+(Ta3−Ta2)+(Ta2−Ta1)/2. |
| Claim: |
2. An electronic music device comprising: an interface that establishes a connection with a counterpart electronic music device; and a controller that conducts an online real-time session with the counterpart electronic music device, wherein the controller makes an inquiry about a present time Tb of the counterpart electronic music device at a time Ta1 which is counted therein, wherein the controller receives the present time Tb of the counterpart electronic music device, indicating the time when the counterpart electronic music device receives or responses to the inquiry, at a time Ta2 which is counted therein, wherein the controller sets a time Ta3 which progresses from the time Ta2, wherein the controller further sets a time interval Td which is counted from the time Ta3, and wherein the controller determines tone-generation timing at which the controller is synchronized with the counterpart electronic music device in conducting an online real-time session by way of a calculation of Td+Tb+(Ta3−Ta1)−(Ta2−Ta1)/2, or Td+Tb+(Ta3−Ta2)+(Ta2−Ta1)/2. |
| Claim: |
3. A computer-readable storage medium implementing a tone-generation timing synchronization method for controlling an online real-time session with a plurality of electronic music devices each including an interface connectible to a communication network, said tone-generation timing synchronization method comprising the steps of: making, by a first electronic music device, an inquiry about a present time Tb of a second electronic music device at a time Ta1 which is counted by the first electronic music device; sending back, by the second electronic music device, the present time Tb to the first electronic music device, wherein the present time Tb indicates the time when the second electronic music device receives or responses to the inquiry made by the first electronic music device; measuring, by the first electronic music device, a time Ta2 of receiving the present time Tb of the second music device; setting, by the first electronic music device, a time Ta3 which progresses from the time Ta2; further setting, by the first electronic music device, a time interval Td which is counted from the time Ta3; and determining tone-generation timing, shared between the first electronic music device and the second electronic music device, at which the first electronic music device is synchronized with the second electronic music device in conducting an online real-time session therebetween by way of a calculation of Td+Tb+(Ta3−Ta1)−(Ta2−Ta1)/2, or Td+Tb+(Ta3−Ta2)+(Ta2−Ta1)/2. |
| Current U.S. Class: |
84/623 |
| Current International Class: |
10 |
| رقم الانضمام: |
edspap.20120160080 |
| قاعدة البيانات: |
USPTO Patent Applications |