Information transmission method, information processing method, information transmission system, and data processing apparatus

Abstract

A personal computer that is a controller transmits a reserve request for reserving a remote control. An MD recorder/player that is a target sets a reserve mode corresponding to the reserve request. In other words, the MD recorder/player prohibits another controller from performing a remote control by another controller. In addition, the MD recorder/player prohibits local key operations other than reproduction keys, a stop key, and an eject key. Thus, only the personal computer can perform an operation control for updating for example TOC information of the MD recorder/player. Thus, a mismatch of TOC information due to a remote control of another controller and a local key operation can be prevented from taking place between the personal computer and the MD recorder/player.

1 - 11 . (canceled)  
   
   
       12 . An information processing system, having a plurality of information processing apparatuses connected through a data bus corresponding to a predetermined communication format, for performing a remote control with data and various commands transmitted and received between the information processing apparatuses, comprising: 
 a first information processing apparatus; and    a second information processing apparatus,    wherein said first information processing apparatus has:    download data transmitting means for transmitting download data that is downloaded to said second information processing apparatus,    download start/completion request command transmitting means for generating and transmitting a download start request command when the transmission of the download data starts and for generating and transmitting a download completion request command when the transmission of the download data is completed, and    reserve request command transmitting means for generating a reserve request command for requesting said first information processing apparatus for a reservation of a remote control against said second information processing apparatus and transmitting the reserve request command to said second information processing apparatus before the download start request command is transmitted, and    wherein said second information processing apparatus has:    receiving means for receiving data transmitted through the data bus,    data recording means for recording the download data that is received by the receiving means to a predetermined record medium,    response processing means for executing a predetermined process corresponding to one of various commands received by the receiving means so as to enable another information processing apparatus to perform a remote control of said second information processing apparatus,    local operation controlling means for locally performing an operation control for a predetermined operation against the data recording and reproducing means,    first reserve mode setting means for setting, as a reserve mode to be set corresponding to the reserve request command received by the receiving means, the response processing means so as to permit a remote control by said first information processing apparatus and prohibit a remote control by other information processing apparatuses, and    second reserve mode setting means for setting, as a reserve mode to be set corresponding to the reserve request command received by said receiving means, the local operation controlling means so as to enable a predetermined operation of those performed by the local operation controlling means and disable other than the enabled operations.    
   
   
       13 . The information processing system as set forth in  claim 12 , 
 wherein the data bus corresponding to the predetermined communication format is an IEEE 1394 bus.    
   
   
       14 . The information processing system as set forth in  claim 12 , 
 wherein said first information processing apparatus also has:    reserve cancellation request command transmitting means for generating a reserve cancellation request command for requesting said second information processing apparatus for a cancellation of the reservation of the remote control and transmitting the reserve cancellation request command thereto after the download completion request command is transmitted,    wherein the first reserve mode setting means of said second information processing apparatus causes the response processing means to permit all the other information processing apparatuses connected to the data bus to perform a remote control of said second information processing apparatus corresponding to the reserve cancellation request command received by the receiving means so as to cancel the reserve mode, and    wherein the second reserve mode setting means of said second information processing apparatus enables all the operations of the local operation controlling means corresponding to the reserve cancellation request command received by the receiving means so as to cancel the reserve mode.    
   
   
       15 . The information processing system as set forth in  claim 12 , 
 wherein the reserve request command transmitting means of said first information processing apparatus does not transmit the reserve request command,    wherein the first reserve mode setting means and the second reserve mode setting means of said second information processing apparatus set the reserve mode corresponding to the download start request command received from said second information processing apparatus through the receiving means.    
   
   
       16 . The information processing system as set forth in  claim 12 , 
 wherein the first reserve mode setting means of said second information processing apparatus causes the response processing means to permit all the other information processing apparatuses connected to the data bus to perform a remote control of said second information processing apparatus corresponding to the download completion request command received from said first information processing apparatus by the receiving means so as to cancel the reserve mode, and    wherein the second reserve mode setting means of said second information processing apparatus enables all the operations of the local operation controlling means corresponding to the download completion request command received from said first information processing apparatus by the receiving means so as to cancel the reserve mode.    
   
   
       17 . The information processing system as set forth in  claim 12 , 
 wherein said second information processing apparatus also has:    bus reset detecting means for detecting an occurrence of a bus reset on the data bus, and    wherein when the bus reset detecting means has detected an occurrence of a bus reset, the first reserve mode setting means causes the response processing means to permit all the other information processing apparatuses connected to the data bus to perform a remote control of said second information processing apparatus so as to cancel the reserve mode and the second reserve mode setting means enables all the operations of the local operation controlling means so as to cancel the reserve mode.    
   
   
       18 . The information processing system as set forth in  claim 12 , 
 wherein said second information processing apparatus also has:    rejection response transmitting means for transmitting a rejection response to said first information processing apparatus, the rejection response representing the rejection of the reservation of the remote control, when the operation state of said second information processing apparatus prohibits the reservation of the remote control by said first information processing apparatus as a response to the reserve request command or the download start request command received by the receiving means.    
   
   
       19 . The information processing system as set forth in  claim 18 , 
 wherein the reservation of the remote control by said first information processing apparatus is prohibited when the remote control of said second information processing apparatus is reserved by other than said first information processing apparatus.    
   
   
       20 . The information processing system as set forth in  claim 18 , 
 wherein the reservation of the remote control by said first information processing apparatus prohibited when an operation control for the editing process is being performed by the local operation controlling means of said second information processing apparatus.    
   
   
       21 . The information processing system as set forth in  claim 12 , 
 wherein said first information processing apparatus also has:    receiving means for receiving a rejection response transmitted from said second processing apparatus, the rejection response representing a rejection of the reserve request for the remote control by said first information processing apparatus, and    presentation means for presenting that the remote control of said second information processing apparatus is prohibited, when the rejection response is received by the receiving means.    
   
   
       22 - 60 . (canceled)  
   
   
       61 . An information processing method for an information processing system, having a plurality of information processing apparatuses connected through a data bus corresponding to a predetermined communication format, for performing a remote control with data and various commands transmitted and received between the information processing apparatuses, having at least: 
 a first information processing apparatus; and    a second information processing apparatus,    wherein for the first information processing apparatus, the information processing method comprises the steps of:    transmitting download data that is downloaded to the second information processing apparatus (as download data transmitting step),    generating and transmitting a download start request command when the transmission of the download data starts and for generating and transmitting a download completion request command when the transmission of the download data is completed (as download start/completion request command transmitting step), and    generating a reserve request command for requesting the first information processing apparatus for a reservation of a remote control against the second information processing apparatus and transmitting the reserve request command to the second information processing apparatus before the download start request command is transmitted (as reserve request command transmitting step), and    wherein for the second information processing apparatus, the information processing method comprises the steps of:—   receiving data transmitted through the data bus (as receiving step),    recording the download data that is received at the receiving step to a predetermined record medium (as data recording step),    executing a predetermined process corresponding to one of various commands received at the receiving step so as to enable another information processing apparatus to perform a remote control of the second information processing apparatus (as response processing step),    locally performing an operation control for a predetermined operation against the data recording and reproducing step (as local operation controlling step),    setting, as a reserve mode to be set corresponding to the reserve request command received at the receivinq step, the response processing step so as [o permit a remote control by the first information processing apparatus and prohibit a remote control by other information processing apparatuses (as first reserve mode setting step), and    setting, as a reserve mode to be set corresponding to the reserve request command received at the receiving step, the local operation controlling step so as to enable a predetermined operation of those performed at the local operation controlling step and disable other than the enabled operations (as second reserve mode setting step).    
   
   
       62 . The information processing method as set forth in  claim 61 , 
 wherein the data bus corresponding to the predetermined communication format is an IEEE 1394 bus.    
   
   
       63 . The information processing method as set forth in  claim 61 , 
 wherein for the first information processing apparatus, the information processing method further comprises the step of:    generating a reserve cancellation request command for requesting the second information processing apparatus for a cancellation of the reservation of the remote control and transmitting the reserve cancellation request command thereto after the download completion request command is transmitted (as reserve cancellation request command transmitting step),    wherein the first reserve mode setting step for the second information processing apparatus is performed by causing the response processing slap to permit all the other information processing apparatuses connected to the data bus to perform a remote control of the second information processing apparatus corresponding to the reserve cancellation request command received at the receiving step so as to cancel the reserve mode, and    wherein the second reserve mode setting step of the second information processing apparatus is performed by enabling all the operations of the local operation controlling step corresponding to the reserve cancellation request command received at the receiving step so as to cancel the reserve mode.    
   
   
       64 . The information processing method as set forth in  claim 61 , 
 wherein at the reserve request command transmitting step for the first information processing apparatus, the reserve request command is not transmitted,    wherein the first reserve mode setting step and the second reserve mode setting step for the second information processing apparatus are performed by setting the reserve mode corresponding to the download start request command received from the second information processing apparatus at the receiving step.    
   
   
       65 . The information processing method as set forth in  claim 61 , 
 wherein the first reserve mode setting step for the second information processing apparatus is performed by causing the response processing step to permit all the other information processing apparatuses connected to the data bus to perform a remote control of the second information processing apparatus corresponding to the download completion request command received from the first information processing apparatus at the receiving step so as to cancel the reserve mode, and    wherein the second reserve mode setting step for the second information processing apparatus is performed by enabling all the operations at the local operation controlling step corresponding to the download completion request command received from the first information processing apparatus at the receiving step so as to cancel the reserve mode.    
   
   
       66 . The information processing method as set forth in  claim 61 , 
 wherein for the second information processing apparatus, the information processing method further comprises the step of:    detecting an occurrence of a bus reset on the data bus (as bus reset detecting step), and    wherein at the bus reset detecting step, when an occurrence of a bus reset has been detected, the first reserve mode setting step is performed by causing the response processing step to permit all the other information processing apparatuses connected to the data bus to perform a remote control of the second information processing apparatus so as to cancel the reserve mode and the second reserve mode setting step is performed by enabling all the operations at the local operation controlling step so as to cancel the reserve mode.    
   
   
       67 . The information processing method as set forth in  claim 61 , 
 wherein for the second information processing apparatus, the information processing method further comprises the step of:    transmitting a rejection response to the first information processing apparatus, the rejection response representing the rejection of the reservation of the remote control, when the operation state of the second information processing apparatus prohibits the reservation of the remote control by the first information processing apparatus as a response to the reserve request command or the download start request command received at the receiving step (as rejection response transmitting step).    
   
   
       68 . The information processing method as set forth in  claim 67 , 
 wherein the reservation of the remote control by the first information processing apparatus is prohibited when the remote control of the second information processing apparatus is reserved by other than the first information processing apparatus.    
   
   
       69 . The information processing method as set forth in  claim 67 , 
 wherein the reservation of the remote control by the first information processing apparatus is prohibited when an operation control for the editing process is being performed at the local operation controlling step for the second information processing apparatus.    
   
   
       70 . The information processing method as set forth in  claim 61 , 
 wherein for the first information processing apparatus, the information processing method further comprises the step of:    receiving a rejection response transmitted from the second processing apparatus, the rejection response representing a rejection of the reserve request for the remote control by the first information processing apparatus (as receiving step), and    presenting that the remote control of the second information processing apparatus is prohibited, when the rejection response is received at the receiving step (as presentation step).    
   
   
       71 - 98 . (canceled)